Computer Capsule 6x6c5f

IBPS

COMPUTER CAPSULE IBPS PO, RRB & Clerk Mains Exams

Inventions & Discoveries

Networking

Introduction of Computer

Important Single Linear

Computer Memory

Most Expected 400 MCQ

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Important Inventions & Discoveries

1

Generation of Computers

2

Computer Memory

2

Types of Computer

5

Operating System

6

Computer Network

7

d Servers

8

d Network Devices

11

d OSI Model

11

d IP Address

13

d Some Important Networking Terminology

13

Number System

16

M.S. Word/Excel Shortcuts

17

Single Linear Questions

18

Important Abbreviations

25

Most Expected 400 MCQ

26

Computer Capsule – IBPS PO, RRB & Clerk Mains Exam

 Father of Computer– Charles Babbage First Modern Computer in the World- ENIAC Inventor of Punch Cards in Computer – Hollerith Computer Graphics was developed by – William Fetter ARPANET was developed by – DARPA Compiler was developed by – Dr. Grace Murray Hopper Father of Computer Animations- John Whitney  Keyboard was invented by- Christopher Latham Sholes Laptop Computer was invented by – Adam Osborne First GUI Computer Game was invented by- A.S. Douglas Computer BIOS was invented by – Gary Kildall Inventors of Computer Chip– Jack Kilby & Robert Noyce Father of Computer Hard Disk- Reynold Johnson Inventor of First Data Base – Dr. Edgar Frank Codd Inventor of Computer Scanner – Ray Kurzweil Inventor of Computer Speakers- Abinawan Puracchidas Inventor of MS-DOS Operating Systems- Microsoft Founder of Apple Computers – Steve Jobs 

Founder of Artificial Intelligence – John McCarthy

Founder of Bluetooth – Ericsson Father of C Language – Dennis Ritchie Father of C++ language – Bjarne Stroustrup Founder of Email – Shiva Ayyadurai Founder of Google – Larry Page and Sergey Brin Founder of Internet – Vint Cerf Father of Java - James Gosling Founder of Linux – Linus Torvalds Founder of Microsoft – Bill Gates and Paul Allen Founder of Mobile Phones – Martin Cooper Founder of Mouse – Douglas Engelbart Founder of Php – Rasmus Lerdorf Founder of USB – Ajay V.Bhatt Founder of WWW – Tim Berners-Lee Founder of Yahoo – Jurry Yang and David Filo First Commercial Computer – UNIVAC ENIAC and UNIVAC was developed by – John Mauchly and J. Presper Eckert

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam

1st

2nd

3rd

4th

5th

Period

1940 – 1956

1956 – 1963

1964 – 1971

1972 – 2010

2010-till date

Components

Vacuum Tubes

Transistor

Integrated

Microprocessor,

Silicon Chips,

Circuits – ICs

Large Scale ICs

ULSI,AI

IBM-370

PDP 11

NoteBook

Computer

EDVAC,ENIAC,EDSAC UNIVAC

IBM-1401

UltraBook....

There are two basic components of computer, Hardware and Software. 1. Hardware- physical components of the computer system are called as hardware. For example- Mother Board, Input Devices, Output Device, Storage Devices Input Devices are used to enter the input i.e. the data and instructions into the computer’s main memory. Exampleskeyboard, Mouse, scanner, BCR, OMR, OCR, Light Pen, Joysticks,Etc.. Output Device are used to produce data and information generated by computer .for example- Moniter, Printer, speaker, Plotter, Etc. 2. Software- Software is a sequence of instructions designed to direct the computer to perform certain functions. It is generally classified into three categories: (i) System Software-: This type of software is required to use the computer efficiently and conveniently. For exampleOperating System, Drivers etc. (ii) Application Software-: This software is designed to do certain tasks for an organization. For example Ms.Office, Payroll system to calculate salaries of the employees, etc. (iii) Utility Software-: It is designed to analyze, configure and maintain a computer. For example- Antivirus, etc.

Computer memory is the storage space in computer where data is to be processed and instructions required for processing are stored.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 1. Primary Memory 2.Secondary Memory Primary Memory (Main Memory)- Primary memory holds only those data and instructions on which computer is currently working. It has limited capacity and data is lost when power is switched off. It is generally made up of semiconductor device. These memories are not as fast as s. The data and instruction required to be processed reside in main memory. It is divided into two subcategories RAM and ROM. Characteristics of Main Memory These are semiconductor memories, It is also known as main memory.  Usually volatile memory.  Data is lost in case power is switched off.  It is working memory of the computer.  Faster than secondary memories. Secondary Memory(Auxiliary Memory)- This type of memory is also known as external memory or non-volatilE. It is slower than main memory. These are used for storing data/Information permanently. U directly does not access these memories instead they are accessed via input-output routines. Contents of secondary memories are first transferred to main memory, and then U can access it. For example: disk, CD-ROM, DVD etC. Characteristic of Secondary Memory  These are magnetic and optical memories It is known as backup memory.  It is non-volatile memory.  Data is permanently stored even if power is switched off.  It is used for storage of data in a computer.  Computer may run without secondary memory. Slower than primary memories. RAM (Random Access Memory) is the internal memory of the U for storing data, program, and program result. It is a read/write memory which stores data until the machine is working. As soon as the machine is switched off, data is erased. RAM is volatile, i.e. data stored in it is lost when we switch off the computer or if there is a power failure. Hence, a backup Uninterruptible Power System (UPS) is often used with computers.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam RAM is of two types – 1. Static RAM (SRAM)

2. Dynamic RAM (DRAM)

Static RAM (SRAM) The word static indicates that the memory retains its contents as long as power is being supplied. However, data is lost when the power gets down due to volatile nature. SRAM chips use a matrix of 6-transistors and no capacitors. Transistors do not require power to prevent leakage, so SRAM need not be refreshed on a regular basis. There is extra space in the matrix, hence SRAM uses more chips than DRAM for the same amount of storage space, making the manufacturing costs higher. SRAM is thus used as cache memory and has very fast access. Dynamic RAM (DRAM) DRAM, unlike SRAM, must be continually refreshed in order to maintain the data. This is done by placing the memory on a refresh circuit that rewrites the data several hundred times per second. DRAM is used for most system memory as it is cheap and small. All DRAMs are made up of memory cells, which are composed of one capacitor and one transistor. Cache Memory Cache memory is a very high speed semiconductor memory which can speed up the U. It acts as a buffer between the U and the main memory. It is used to hold those parts of data and program which are most frequently used by the U. The parts of data and programs are transferred from the disk to cache memory by the operating system, from where the U can access them. ROM (Read Only Memory) ROM stands for Read Only Memory. The memory from which we can only read but cannot write on it. This type of memory is non-volatilE. The information is stored permanently in such memories during manufacture. A ROM stores such instructions that are required to start a computer. This operation is referred to as bootstrap. ROM chips are not only used in the computer but also in other electronic items like washing machine and microwave oven. MROM (Masked ROM) The very first ROMs were hard-wired devices that contained a pre-programmed set of data or instructions. These kind of ROMs are known as masked ROMs, which are inexpensive. PROM (Programmable Read Only Memory) PROM is read-only memory that can be modified only once by a . The buys a blank PROM and enters the desired contents using a PROM program. Inside the PROM chip, there are small fuses which are burnt open during programming. It can be programmed only once and is not erasable. EPROM (Erasable and Programmable Read Only Memory) EPROM can be erased by exposing it to ultra-violet light for a duration of up to 40 minutes. Usually, an EPROM eraser achieves this function. During programming, an electrical charge is trapped in an insulated gate region. The charge is retained for more than 10 years because the charge has no leakage path. For erasing this charge, ultra-violet light is ed through a quartz crystal window (lid). This exposure to ultra-violet light dissipates the charge. During normal use, the quartz lid is sealed with a sticker. EEPROM (Electrically Erasable and Programmable Read Only Memory) EEPROM is programmed and erased electrically. It can be erased and reprogrammed about ten thousand times. Both erasing and programming take about 4 to 10 ms (millisecond). In EEPROM, any location can be selectively erased and programmed. EEPROMs can be erased one byte at a time, rather than erasing the entire chip. Hence, the process of reprogramming is flexible but slow.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam

Bit

0,1

1 Nibble

4 Bits

1 Byte or Character

8 Bits

1 KB (Kilo Byte)

1024 Bytes

1 MB (Mega Byte)

1024 KB

1 GB (Giga Byte)

1024 MB

1 TB (Tera Byte)

1024 GB

1 PB (Peta Byte)

1024 TB

1EB (Exa Byte)

1024 PB

1ZB (Zetta Byte)

1024 EB

1YB (Yotta Byte)

1024 ZB

1. PC

2. Laptop

3. Minicomputer

5. Mainframe Computer

6.Palmtop

7. Super computer

4. Microcomputer

A supercomputer is a computer with great speed and memory. This kind of computer can do jobs faster than any other computer of its generation. They are usually thousands of times faster than ordinary personal computers made at that timE. The first Atlas was officially commissioned on 7 December 1962, nearly three years after the Cray CDC 6600 supercomputer was introduced, as one of the world's first supercomputers. Seymour Cray is called as father of super computer. Top 5 Super computer in the world in year-2017 Name

Rank

Sunway 1

Taihulight

R Maks (Tflop)

Site

93.7Petaflops

National Super Computer Center in Wuxi, China

2

Tianhe-2

33.8 petaflops

National Super Computer Center in Guangzhou, China

3

Piz Daint

19.0 petaflops

Swiss national supercomputing, Switzerland

4

Titan

17.6 petaflops

Oak Ridge National Laboratory, United States

5

Sequoia

17.2 petaflops

Lawrence Livermore National Laboratory, United States

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam Jun-2017 India has 4 system in top 500 super computer List NAME

RANK (in world)

Sahasrat(CRAY-XC 40)

165

Aadita

261

TIFR

356

HP Apollo

392

An Operating System, or OS, is a software program that enables the computer hardware to communicate and operate with the computer software. Without a computer Operating System, a computer would be useless.

Basic functions of an operating system Operating system controls and coordinates the use of the hardware among the various applications programs for various uses.  Operating system acts as resource allocator and manager. Since there are many possibly conflicting requests for resources the operating system must decide which requests are allocated resources to operating the computer system efficiently and fairly?  Operating system is control program which controls the programs to prevent errors and improper use of the computer. It is especially concerned with the operation and control of I/O devices.  Multiprogramming – In multiprogramming more than one program reside in the main memory. When one job is unable to execute because of I/O operation to complete, it switches to other program and allow that program to run The main motive of multiprogramming is to utilize the U efficiently.  Multitasking-In multitasking operating system more than one program is assigned to the U or switches between the programs occurs so fast that it seems like more than one program is running. The main motive of multitasking is to utilize the U efficiently and reduce the response time.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam  Multiprocessing-In multiprocessing operating system a task is divided between more than one processor (U) so that parallelism can be achieved.  Multithreading -Sometime a program need to do multiple task at the same time. It is an extension of multiprogramming. In multithreading the program is divided into multiple task . Throughput, Turnaround time, waiting time and Response time -:  Throughput – number of processes that complete their execution per time unit.  Turnaround time – amount of time to execute a particular process.  Waiting time – amount of time a process has been waiting in the ready queue.  Response time – amount of time it takes from when a request was submitted until the first response is produced, not output (for time-sharing environment). Hard and Soft real-time systems-:  A hard real time system guarantees that critical tasks complete on time. This goal requires that all delays in the system be bouSnded from the retrieval of the stored data to the time that it takes the operating system to finish any request made of it.  A soft real time system where a critical real-time task gets priority over other tasks and retains that priority until it completes. As in hard real time systems kernel delays need to be bounded

     

In 1983 Bill Gates announces Microsoft Window November 10, 1983, Microsoft Windows 1.01 is introduced in November 20,1985 and initially sold for $100.00 Microsoft Windows 1.03 is introduced in August 1986. Microsoft Windows NT( New Technology) is introduced in 27 July 1993. Microsoft Windows ME( Millennium ) is introduced in 2000. Microsoft Windows XP(eXPerience ) is introduced in 25 October 2001.

A computer network is a system in which multiple computers are connected to each other to share information and resources. Characteristics of a Network : A network is a group of systems that are connected to allow sharing of resources—such as files or printers—or sharing of services-such as an Internet connection .There are two aspects of setting up a network: the hardware used to connect the systems together and the software installed on the computers to allow them to communicate.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam Basic Communication Model : Communication model is used to exchange data between two parties. For example communication between a computer, server and telephone (through modem).

 Source- Data to be transmitted is generated by this device, example: telephones, personal computers etc.  Transmitter- The data generated by the source system are not directly transmitted in the form they are generated. The transmitter transforms and encodes the information in such a form to produce electromagnetic waves or signals.  Transmission System- A transmission system can be a single transmission line or a complex network connecting source and destination.  Receiver- Receiver accepts the signal from the transmission system and converts it to a form which is easily managed by the destination device.  Destination-Destination receives the incoming data from the receiver. Network Topology: Topology is the geometric arrangement of a computer system. Each computer system in a topology

is

known as a node. Network topology is determined only by the configuration of connections between nodes.  Bus Topology: A bus topology is such that there is a single line to which all nodes are connected and the nodes connect only to this bus.  Mesh Topology: This type of network topology contains at least two nodes with two or more paths between them.  Ring Topology: In this network topology, every node has exactly two branches connected to it. The ring is broken and cannot work if one of the nodes on the ring fails.  Star Topology: In this network topology, the peripheral nodes are connected to a central node, which rebroadcasts all transmissions received from any peripheral node to all peripheral nodes on the network, including the originating node.  Tree Topology: This is a network topology in which nodes' are arranged as a tree. The function of the central node in this topology may be distributed.

The server is a special computer that contains more disk space and memory than are found on client workstations. The server has special software installed that allows it to function as a server. This special software can provide file and print services (to allow sharing of files and printers), provide web pages to clients, or provide e-mail functionality to the company. Workstations - The workstation also is known as a client, which is just a basic computer running a client operating system such as Windows XP or Linux. These s typically store their files on a central server so that they can share the files with other s on the network. Hosts- The term host refers to any computer or device that is connected to a network and sends or receives information on that network. A host can be a server, a workstation, a printer with its own network card, or a device such as a router. We can summarize by saying that any system or device that is connected to the network is known as a host.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam Types of Networks- Organizations of different sizes, structures, and budgets need different types of networks. Networks can be divided into one of two categories: peer-to-peer or server-based networks. 1.

Peer-to-Peer Network

2.

Server-Based Networks

Peer-to-Peer Network A peer-to-peer network has no dedicated servers instead; a number of workstations are connected together for the purpose of sharing information or devices. When there is no dedicated server, all workstations are considered equal; any one of them can participate as the client or the server. Peer-to-peer networks are designed to satisfy the networking needs of home networks or of small companies that do not want to spend a lot of money on a dedicated server but still want to have the Capability to share information or devices. For example, A small peer-to-peer network will allow these three computers to share the printer and the customer information with one another .The extra cost of a server was not incurred because the existing client systems were networked together to create the peer-to-peer network. A big disadvantage of peer-to-peer networking is that you can’t do your day-today istration in a single place. Server-Based Networks Usually after four or five systems have been networked, the need for a dedicated server to store all of the s and data files becomes apparent—this is a server-based network. The advantage of a server-based network is that the data files that will be used by all of the s are stored on the one server. This will help you by giving you a central point to set up permissions on the data files, and it will give you a central point from which to back up all of the data in case data loss should occur. With a server-based network, the network server stores a list of s who may use network resources and usually holds the resources as well. The server in a server-based network may provide a number of different services. The services it will offer to the network usually are decided by the server’s role. There are a number of different roles that a server could play on a network: 1.

File and print servers

2. Application servers

3. Web servers

4. Directory servers

1. File and print serversFile and print servers control and share printers and files among clients on the network. File and print servers were the original reason to have a network; a large number of s needed access to the same files, so the files were placed on a server, and all clients were connected to the server when they needed to work with the files. 2. Application serversApplication servers are servers that run some form of special program on the server. A good example of an application server is a server that runs the company’s e-mail server. The e-mail server software is special software that can be run on a server operating system. Another example of software that would run on an application server is a database server product such as Microsoft SQL Server. A database server is a server that holds the company’s core business data and typically gives this data to custom applications that run on the workstations. These are some applications that you might find on an application server: 1. Microsoft SQL Server

2.Oracle

3.Microsoft Exchange Server

4.IBM Lotus Domino

3. Web serversWeb servers are servers that run the Hypertext Transfer Protocol (HTTP) and are designed to publish information on the Internet or the corporate intranet. Web servers are popular in today’s businesses because they host web applications (web sites) for the organization. These web applications could be designed for internal use, or they could be used to publish information to the rest of the world on the Internet. Examples of web server software are Microsoft’s Internet Information Services that runs on Windows or Apache web server software that runs on UNIX/Linux, Novell NetWare, and Windows.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 4. Directory serversDirectory servers hold a list of the s that are allowed to log on to the network. This list of s is stored in a database (known as the directory database) and can store information about these s such as address, city, phone number, and fax number. A directory service is designed to be a central database that can be used to store everything about such objects as s and printers. Network Media and Connectors-: Cabling is the medium for the transmission of data between hosts on the LANs. LANs can be connected together using a variety of cable types, such as unshielded twisted-pair, coax, or fiber. Each cable type has its own advantages and disadvantages, which you will examine in this section. There are three primary types of cable media that can be used to connect systems to a network—coaxial cable, twisted-pair cable, and fiber-optic cablE. Transmission rates that can be ed on each of these physical media are measured in millions of bits per second, or megabits per second (Mbps). Coaxial Cable-: Coaxial, or coax, cable looks like the cable used to bring the cable TV signal to your television. One strand (a solid-core copper wire) runs down the middle of the cable. There are two types of coax cabling: thinnet and thicknet. The two differ in thickness and maximum cable distance that the signal can travel.

Twisted-Pair Cable-: Coaxial cable is not as popular today as it was a few years ago; today the popularity contest has been dominated by twistedpair cabling. Twisted-pair cabling gets its name by having four pairs of wires that are twisted to help reduce crosstalk or interference from outside electrical devices. (Crosstalk is interference from adjacent wires.) there are two forms of twistedpair cabling—unshielded twisted-pair (UTP) and shielded twisted-pair (STP). Fiber-Optic Cable-: The third type of cabling that we want to discuss is fiber-optic cabling. Fiber-optic cabling is unlike coax and twisted-pair, because both of those types have a copper wire that carries the electrical signal. Fiber-optic cables use optical fibers that carry digital data signals in the form of modulated pulses of light. An optical fiber consists of an extremely thin cylinder of glass, called the core, surrounded by a concentric layer of glass, known as the cladding. There are two fibers per cable-one to transmit and one to receive. The core also can be an optical-quality clear plastic, and the cladding can be made up of gel that reflects signals back into the fiber to reduce signal loss. There are two types of fiber-optic cables: single-mode fiber (SMF) and multimode fiber (MMF).

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 1. Single-mode fiber Uses a single ray of light, known as a mode, to carry the transmission over long distances. 2. Multimode fiber Uses multiple rays of light (modes) simultaneously, with each ray of light running at a different reflection angle to carry the transmission over short distances Cable

Max Distance

Transfer Rate

Connector Used

Thinnet

185 m

10 Mbps

BNC

Thicknet

500 m

10 Mbps

AUI

CAT 3 (UTP)

100 m

10 Mbps

RJ-45

CAT 5 (UTP)

100 m

100 Mbps

RJ-45

CAT 5e

100 m

1 Gbps

RJ-45

CAT 6

100 m

10 Gbps

RJ-45

Fiber

2 km

1+ Gbps

SC, ST

Network devices are components used to connect computers or other electronic devices together so that they can share files or resources like printers or fax machines. Devices used to setup a Local Area Network (LAN) are the most common types of network devices used by the public. A LAN requires a hub, router, cabling or radio technology, network cards, and if online access is desired, a high-speed modem. This is much less complicated than it might sound to someone new to networking.  Hub- Broadcasts data from one port to all other ports in the network.  Repeater- Regenerates the input data which is subjected to attenuation.  Switch- Intelligent device which sends data to particular port.  Bridge-Same function as switch but much more primitive and has lesser ports.  Router-Connects all computers from a LAN to internet using same IP.  IEEE 802.11- WiFi standard- 802.11 b has speed of 11 Mbps, 802.11 g has a speed of 54 Mbps and 802.11 N uses multiple wireless signals and antennas and has speeds of over 100Mbps.  Gateway-Needed when 2 different network technologies are being used. Acts as translator.  Connecting Cables- RJ-11(Telephone Cable), RJ 45 (LAN Cable), Twisted pair cables (used in connecting 2 computers), Null Modem Cable (RS232) , Optial Fibre Cable(Gigabit Ethernet).  ARPANET- Advanced Research Projects Agency Network, ARPANET or ARPAnet began development in 1966 by the United States ARPA. ARPANET was a Wide Area Network linking many Universities and research centers, was first to use packet switching, and was the beginning of what we consider the Internet today. Some of the reasons for creating ARPANET include making it easier for people to access computers, to improve computer equipment, and to have a more effective communication method for the military.

OSI (Open Systems Interconnection) is reference model for how messages should be transmitted between any two points in a telecommunication network. A reference model is a framework for understanding relationships. The purpose of the OSI reference model is to guide vendors and developers so that the digital communication products and software programs they create will interoperatE. The OSI reference model defines seven layers of functions that take place at each end of a communication.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam Layers of Osi -

Layer 7: The application layer - This is the layer at which communication partners are identified, quality of service (QoS) is identified, authentication and privacy are considered, and any constraints on data syntax are identified. (This layer is not the application itself, although some applications may perform application layer functions.) Layer 6: The presentation layer - This is a layer, usually part of an operating system (OS), that converts incoming and outgoing data from one presentation format to another (for example, from a text stream into a popup window with the newlyarrived text). Layer 5: The session layer - This layer sets up, coordinates, and terminates conversations, exchanges, and dialogs between the applications at each end. It deals with session and connection coordination. Layer 4: The transport layer - This layer manages the end-to-end control (for example, determining whether all packets have arrived) and error-checking. It ensures complete data transfer. Layer 3: The network layer - This layer handles the routing of the data (sending it in the right direction to the right destination on outgoing transmissions and receiving incoming transmissions at the packet level). The network layer does routing and forwarding. Layer

2:

The

data-link

layer

-

This

layer

provides

synchronization for the physical level and does bit-stuffing for strings of 1's in excess of 5. It furnishes transmission protocol knowledge and management. This layer has two sub layers, the Logical Link Control Layer and the Media Access Control Layer. Layer 1: The physical layer - This layer conveys the bit stream through the network at the electrical and mechanical level. It provides the hardware means of sending and receiving data on a carrier network.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam

Every machine on a network has a unique identifier. Most networks today, including all computers on the Internet, use the T/IP protocol as the standard for how to communicate on the network. In the T/IP protocol, the unique identifier for a computer is called its IP address. There are two standards for IP addresses:1) IP Version 4 (IPv4)

2) IP Version 6 (IPv6).

All computers with IP addresses have an IPv4 address, and many are starting to use the new IPv6 address system as well. Here's what these two address types mean:IPv4 uses 32 binary bits to create a single unique address on the network. An IPv4 address is expressed by four numbers separated by dots. Each number is the decimal (base-10) representation for an eight-digit binary (base-2) number, also called an octet. For example: 216.27.61.137. Class A - 0.0.0.0

- 127.255.255.255

Class B - 128.0.0.0 - 191.255.255.255

Class C - 192.0.0.0 - 223.255.255.255

Class D - 224.0.0.0 - 239.255.255.255

Class E - 240.0.0.0 - 247.255.255.255 IPv6 uses 128 binary bits to create a single unique address on the network. An IPv6 address is expressed by eight groups of hexadecimal (base-16) numbers separated by colons, as in 2001:cdba:0000:0000:0000:0000:3257:9652 Groups of numbers that contain all zeros are often omitted to save space, leaving a colon separator to mark the gap (as in 2001:cdba::3257:9652).

 MAC address -: The address for a device as it is identified at the Media Access Control (MAC) layer in the network architecturE. MAC address is usually stored in ROM on the network adapter card and is uniquE.  Bandwidth -: Every line has an upper limit and a lower limit on the frequency of signals it can carry. This limited range is called the bandwidth.  Bookmark - When referring to the Internet or a browser, a bookmark or electronic bookmark is a method of saving a web page's address. For example, with most browsers pressing Ctrl + D will bookmark the page you are viewing.  Bounce -A description of what occurs when an e-mail message returns back to the sender as undeliverablE. Some e-mail programs also have a bounce or bounce back feature built into them, which allows the to bounce messages back to the sender causing the e-mail address to appear invaliD.  Buffer-When referring to memory, a buffer is a temporary storage in memory that stores information while processing other information.  Cloud computing -A term used to describe services over a network by a collection of servers. These computers or cloud of computers enable the s visiting to have access to much faster computers or servers, be able to access programs and services from anywhere with Internet access often without having to install other software, and get access to the services from any device capable of reaching the network or Internet  Cyber Law- Cyber law is the part of the overall legal system that deals with the Internet, cyberspace, and their respective legal issues. Cyber law covers a fairly broad area, encoming several subtopics including freedom of expression, access to and usage of the Internet, and online privacy. Generically, cyber law has been referred to as the Law of the Internet.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam  DNS-: Domain Name System or Domain Name Service, a DNS is an Internet or other network server that helps to point domain names or the hostname to their associated IP address that was introduced by Paul Mockapetris and Jon Postel in1984. If a domain name is not found within the local database, the server may query other domain servers to obtain the address of a domain name. For example, when a is accessing the Computer Hope domain a would enter the easy to domain: computerhopE.com. When entered that domain name is looked up on a Domain Name System to translate that name into an IP address that can be better understood by computer, E.g. 69.72.169.241. Using that IP address the computers can then find the computer containing the Computer Hope web page and forward that information to your computer.  E-learning- : E-learning Stands for electronic learning, E-learning (or eLearning) is a term used to describe the process of acquiring knowledge via the use of a computer and the Internet, intranet, or extranet, using various types of media. The multimedia may include streaming video, audio recordings, videoconferencing using a webcam, and even virtual worlds, such as Second Life. It is commonly self-paced but can be led by an instructor as well.  Phishing-: Pronounced like fishing, phishing is a term used to describe a malicious individual or group of individuals scamming s by sending e-mails or creating web pages that are designed to collect an individual's online bank, credit card, or other information. Because these e-mails and web pages look like legitimate companies s trust them and enter their personal information.

 Pop-up-: Term used to describe a Window that appears on top of all other Windows. This term became a well-known term with the advent of intrusive and non-intrusive Internet pop-up ads. These ads became increasingly annoying as this form of advertising started to become more popular with many web pages.  Search engine-: A search engine is a software program or script available through the Internet that searches documents and files for keywords and returns the results of any files containing those keywords. Today, there are thousands of different search engines available on the Internet, each with their own abilities and features. The first search engine ever developed is considered Archie, which was used to search for FTP files and the first text-based search engine is considered Veronica. Today, the most popular and well known search engine is Google.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam  Server side scripting-: Server-side scripting is a method of deg Websites so that the process or request is run on the originating server. These scripts provide an interface to the and are used to limit access to proprietary data. These scripts also work with reusability and allow the to control access to the source code of the script to limit any attempts at reverse engineering; additionally some of the coding used in these scripts may even be valuable or proprietary.  ASP- : Active Server Pages, an ASP page is a dynamically created web page that commonly ends with a .ASP extension that utilizes ActiveX scripting, usually VBScript or JScript code. The .aspx extension is used for Web pages that use Microsoft's ASP.NET. These pages are called "Web Forms", and can contain (X) HTML code as well as ASP.NET code.  Web page-: A web page or webpage is a document commonly written in Hyper Text Markup Language (HTML) that is accessible through the Internet or other network using a browser. A web page is accessed by entering a URL addresses and may contain text, graphics, and hyperlinks to other web pages and files.  WWW-: Short for World Wide Web, WWW sometimes also abbreviated as W3 or Web is a graphical interface for the Internet that was first introduced to the public on August 6, 1991 by Tim Berners-Lee. The World Wide Web consists of billions of pages linked to each other that contain text, graphics, multimedia files, and other interactive software. Unlike other services available through the Internet, the World Wide Web provides a rich medium and helps brings all people together. The first web site was built at CERN by Tim Berners-Lee and put online August 6, 1991.  Firewall-: A firewall is a software utility or hardware device that limits outside network access to a computer or local network by blocking or restricting network ports. Firewalls are a great step for helping prevent un-authorized access to a company or home network. The picture is an example of a hardware firewall, the ZyXEL ZyWALL a Unified Security Gateway with a Firewall and other security features. In addition to hardware firewalls like that shown above, basic hardware firewalls are also commonly found in most network routers and can be configured and setup through the router setup. Software firewalls are designed to protect the computer they are installed onto by blocking any unrestricted programs from sending and receiving information from the network or Internet. A good example of a software Firewall is the Windows Firewall that is included with Microsoft Windows.  NIC-: Short for Network Interface Card, a NIC is also commonly referred to as an Ethernet card and network adapter and is an expansion card that enables a computer to connect to a network such as a home network or the Internet using an Ethernet cable with a RJ-45 connector. The picture is an example of a SMC EZ Card 10/100 PCI network card, a network card commonly found in most desktop computers today that do not already have an onboard network on their motherboard.  Packet switching-: A method of distributing data over a network first developed by Leonard leinrock between 1959 and 1962 and first widely used on ARPANET. In packet switching, information is broken into small segments of data known as packets and then reassembled when received at the destination. This helps prevent any small information sent after larger information from having to wait until the larger information has been sent. When information is broken into packets, the information size and speed of the line is what determines how fast it takes to send information over a network and not the order in which it was sent.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam  Proxy server-: A proxy is a computer server or software program that is part of the gateway server or another computer that separates a local network from outside networks. A proxy server will cache all pages accessed through the network allowing s who may want to visit that same page to load it faster and reduce the networks bandwidth. When a page is accessed that is not in the proxy server's cache, the proxy server will access the page using its own IP address, cache the page, and forward it to the accessing that page.  Spam-: spam is most often considered to be electronic junk mail or junk newsgroup postings. Some people define spam even more generally as any unsolicited email. However, if a long-lost brother finds your email address and sends you a message, this could hardly be called spam, even though it is unsolicited. Real spam is generally email advertising for some product sent to a mailing list or newsgroup. In addition to wasting people's time with unwanted e-mail, spam also eats up a lot of network bandwidth. Consequently, there are many organizations, as well as individuals, who have taken it upon themselves to fight spam with a variety of techniques. But because the Internet is public, there is really little that can be done to prevent spam, just as it is impossible to prevent junk mail. However, some online services have instituted policies to prevent spammers from spamming their subscribers.  Client-server architecture- : Technology that separates computers and application software into two categories clients, and servers to better employ available computing resources and share data processing loads. A client computer provides the interaction-facility (interface) and some or all application processing, while the a server computer might provide high-volume storage capacity, heavy data crunching, and/or high resolution graphics. Typically, several client computers are connected through a network (or networks) to a server which could be a large PC, minicomputer, or a mainframe computer. Every computer connected to a website acts as a client while the website's computer acts as a server. Also called client-server environment.

Number systems are the technique to represent numbers in the computer system architecture, every value that you are saving or getting into/from computer memory has a defined number system. Computer architecture s following number systems.  Binary number system  Octal number system  Decimal number system  Hexadecimal (hex) number system 1) Binary Number System-: A Binary number system has only two digits that are 0 and 1. Every number represents with 0 and 1 in this number system. The base of binary number system is 2, because it has only two digits.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 2) Octal number system-: Octal number system has only eight (8) digits from 0 to 7. Every number represents with 0,1,2,3,4,5,6 and 7 in this number system. The base of octal number system is 8, because it has only 8 digits. 3) Decimal number systemDecimal number system has only ten (10) digits from 0 to 9. Every number represents with 0,1,2,3,4,5,6, 7,8 and 9 in this number system. The base of decimal number system is 10, because it has only 10 digits. 4) Hexadecimal number system-: A Hexadecimal number system has sixteen (16) alphanumeric values from 0 to 9 and A to F. Every number represents with 0,1,2,3,4,5,6, 7,8,9,A,B,C,D,E and F in this number system. The base of hexadecimal number system is 16, because it has 16 alphanumeric values. Here A is 10, B is 11, C is 12, D is 13, E is 14 and F is 15. Number system

Base

Used digits

Example

Binary

2

0,1

(11110000)2

Octal

8

0,1,2,3,4,5,6,7

(257)8

Decimal

10

0,1,2,3,4,5,6,7,8,9

(230)10

Hexadecimal

16

0,1,2,3,4,5,6,7,8,9,

(F9)16

A,B,C,D,E,F

M.S.Word/ Excel Shortcuts with CTRL from A-Z Alphabetically -: CTRL + A = Select text CTRL + B = Bold text CTRL + C = Copy text CTRL + D = Open font formatting window CTRL + E = Centre text CTRL + G = Go To a specific page or bookmark

CTRL + F = Find a phrase CTRL + H = Replace text with another text

CTRL + I = Italic text CTRL + K = Open Insert Hyperlink window

CTRL + J = Justify text CTRL + L = Left align text

CTRL + M = Indent a paragraph from the left

CTRL + N = Open new Word document

CTRL + O = Open an existing Word document CTRL + Q = Remove paragraph formatting

CTRL + P = Print Word document CTRL + R = Right align text

CTRL + S = Save Word document CTRL + U = Underline text

CTRL + T = Create a hanging indent CTRL + V = Paste text

CTRL + W = Close Word document CTRL + Y = Redo an action previously undone

CTRL + X = Cut text CTRL + Z = Undo a previous action

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam M.S Excel shortcut keys-: F2 = edit the selected cell F7 = spell check of the selected text

F5= Go to the specific cell F11= Create the chart

CTRL+SHIFT+ ;= enter the current time ALT+SHIFT+F1= insert the new worksheet

CTRL+; = Enter the current date SHIFT + F3= Open the formula window

SHIFT + F5= open the search box CTRL+G= Open the go to option

CTRL+D= Fill the cell CTRL+O = Open option

CTRL+P= Open the print dialogue box

CTRL+F9= Minimize the current window

CTRL+F10= Maximize the current selected window SHIFT+SPACE= Select entire row

CTRL+F6= Switch between the open worksheets CTRL + SPACE= Select entire column

CTRL+W= Close the window

CTRL+TAB= Move b/w two or more open excel file

 The most common method of entering text and numerical data into a computer system is through the use of a keyboard.  Unsolicited commercial email is commonly known as Spam.  Which device is used for dividing a network into segments- Switch  Executing is the process of carrying out commands.  Editing a document consists of reading through the document you’ve created, then- Correcting your errors.  Most mail programs automatically complete the following two parts in an e-mail- From and To.  Different applications and documents of windows desktop are represented by Icon.  Which area in an Excel window allows entering values and formulas- Formula Bar?  Fax machines and imaging systems are examples of- Scanning devices.  The particular field of a record that uniquely identifies each record is called the key field.  In order to tell Excel that we are entering a formula in a cell,we must begin the entry with an operator- =(Equal)  Booting is the process when the computer is turned on and the operating system is loading.  Numbers in table columns are usually- Right Alignment.  Character in table columns are usually- Left Alignment.  To combine two or more cells into a single cell is called – Merging  In a relational database, this is a data structure that organizes the information about a single topic into rows (Tuple) and columns (Attributes) - Table  The first computers were programmed using- : Machine language.  A series of instructions that tells a computer what to do and how to do it is called a- Instruction  You can use the Address bar to type a URL and display a web page, or type a keyword to display a list of related web pages.  When communication in both directions and both the devices can simultaneously transmit the data known as-: Full duplex  Collaborative software: Groupware, such as Lotus Notes or Microsoft Exchange  Certification: Skills and knowledge assessment process.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam  Computer Crime: The act of stealing, cheating or otherwise defrauding an organization with the use of a Computer.  Cryptography: Method used to protect privacy and security on the internet  DBMS: An acronym for the database management system. A program that maintains and controls the access to collection of related information in electronic files.  Data: Facts coded and structured for subsequent processing, generally using a computer system.  Digital signature: Encrypted signature used for providing security for the messages/data transferred through the internet.  Digital computer: A device that manipulates discrete data and performs arithmetic and logic operations on these data.  Data transmission: The movement of data from one location of storage to another. If the locations are geographically far away, generally done via satellites.  Disk Mirroring: The data is written on two or more hard disks simultaneously over the same channel  Disk Duple Xing: The data is written on two or more hard disks simultaneously over the different channel  Dumb Terminals: Hardware configuration consisting of a keyboard and monitor that is capable of sending and receiving information but has no memory or processing capabilities.  : Process of transferring a file system from one system to another  E-commerce: Business transactions conducted over extranets or the internet  Enterprise, resource planning: An integrated system of operation application combining logistics, production, contract and order management, sales forecasting and financial and HR management  Data processing: It is a method concerning with the systematic recording, arranging, filing, processing and dissemination of facts of business  The Undo button on the quick access Toolbar allows you to cancel your recent commands or actions.  A gigabyte represents approximately one billion memory locations.  Merging cells involves creating a single cell by combining two or more selected cells.  The horizontal and vertical lines on a worksheet are called— gridlines  To delete an incorrect character in a document delete key to erase to the right of the insertion point.  During the boot process, the BIOS looks for the system files.  Multitasking is the ability of an operating system to control the activities of multiple programs at the same timE.  The unique signal, generated by a device, that tells the operating system that it is in need of immediate attention is called an- Interrupt.  The blocks of code, included in the operating system, that software

applications

interact

with

are

known

as: Application programming interfaces (APIs).

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam  MS-DOS is a command-driven operating system.  SRAM retains data as long as power is provided to the memory chip and need not be refreshed periodically. SRAM stands for Static Random Access Memory.  The data on DRAM continues to move in and out of the memory as long as power is available and must be continually refreshed to maintain the data. DRAM stands for Dynamic Random Access Memory.  Impact printers create an image by using some mechanism to physically press an inked ribbon against the page, causing the ink to be deposited on the page in the shape desired. Examples of Impact Printers are Character Printers and Dot Matrix Printers.  Non – Impact Printers do not touch the paper when creating an image. Examples of Non - Impact Printers are Inkjet printers, Laser printers, Solid ink printers, Dye- sublimation, Thermal wax printers, Thermal auto chrome printers.  An Integrated Software is a single application that combines major features of several types of application.  A Hyperlink is a reference to data that the reader can directly follow either by clicking or by hovering or that is followed automatically  The Uniform Resource Locator, abbreviated as URL is a specific character string that constitutes a reference to a resource. In most web browsers, the URL of a web page is displayed on top inside an address bar. An example of a typical URL would be " http://www.makemyexam.in".  An interrupt handler is a special numeric code that indicates the priority of a request.  A spooler is a program that coordinates the print jobs that are waiting to print.  Virtual memory is typically located on the hard drive.  The purpose of a swap (or page) file is to hold a program’s data or instructions in virtual memory when it can’t fit in RAM.  The definition of thrashing is swapping data between virtual memory and RAM too frequently.  Verification of a name and is known as authentication.  The correct sequence of actions that takes place during the boot-up process?  Activate BIOS -> Perform POST -> Load operating system -> Check configuration settings  The BIOS stored on a ROM chip, is responsible for loading the operating system from its permanent location on the hard drive into RAM.  The memory resident portion of the operating system is called the— kernel.  The World Wide Web (abbreviated as WWW or W3, commonly known as the Web) is a system of interlinked hypertext documents that are accessed via the Internet.  CC (Carbon Copy) in e – mail indicates those who are to receive a copy of a message addressed primarily to another. The list of CC recipients is visible to all other recipients of the message.  An additional BCC (blind carbon copy) field is available for hidden notification; recipients listed in the BCC field receive a copy of the message, but are not shown on any other recipient's copy (including other BCC recipients) power-on self-test (POST)  Using Windows Explorer, a plus (+) sign in front of a folder indicates— the folder contains subfolders.  In Windows XP, if you want to see the file size and modified dates of all files in a folder, the best viewing option is the Details view.  The primary purpose of software is to turn data into Information.  A directory within a directory is called-Sub Directory.  A compiler translates a program written in a high-level language into Machine language.  A programming language contains specific rules and words that express the logical steps of an algorithm.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam  The simultaneous processing of two or more programs by multiple processors is Multiprocessing.  The secret code that restricts entry to some programs-  Computers use the binary number system to store data and perform calculations.  Executing is the process of carrying out commands.  Softcopy is the intangible output, so then what is hardcopy - The printed output  An error in a computer program is called as- Bug  Backup is - Protecting data by copying it from the original source to a different destination.  In page preview mode-You can see all pages of your document  A collection of interrelated records is called – Database  To move to the beginning of a line of text, press the Home key.  The term ‘ interface’ refers to—What the sees on the screen and how they can interact with it.  Reusable optical storage will typically have the acronym-RW  Text in a column is generally aligned – Left  In Excel, Charts are created using which option -Chart Wizard  The Mouse pointer becomes different shapes depending on the task you are performing.  ‘MICR’ technology used for clearance of cheques by banks refers to—Magnetic Ink Character Recognition  Modern Computers represent characters and numbers internally using one of the following number systems- Binary  Smallest storage unit of a computer is-Bit  A MODEM is connected in between a telephone line and a—Computer  E-governance-Delivery of public services through internet  ‘Buy Now–Pay Now’ is commonly used for -Visa Cards  Correcting errors in a program is referred to as- debugging  An assembler is used to translate a program written in- Assembly language  The capability of the operating system to enable two or more than two programs to execute simultaneously in a single computer system by using a single processor is-Multitasking  Which keys can be used together with other keys for special tasks - Ctrl, Shift  Which is the part of a computer that one can touch and feel-Hardware  A device that reads the information contained on a disk and transfers it to the computer’s memory- disk drive  The different styles of lettering in a word processing program-font  Any letter, number, or symbol found on the keyboard that you can type into the computer- character  A program which helps create written documents and lets you go back and make corrections as necessary- word processor  A place that a can create to store files- folder  Start or restart the computer-boot  A blinking indicator that shows you where your next action will happen-cursor  Commands at the top of a screen such as: FILE-EDIT-FONT-TOOLS to operate and change things within programs- menu bar  The command used to remove text or graphics from a document. The information is then stored on a clipboard so you can paste it- cut  A removable magnetic disc that holds information-hard drive  A command to get a file you worked on from the memory where it was stored-open  To move down a page in a document-scroll  A program that works like a calculator for keeping track of money and making budgets-spreadsheet

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam  All of the following are examples of real security and privacy risks EXCEPT- spam.  A process known as data mining is used by large retailers to study trends.  Point-of-sale (POS) terminals (formerly known as cash s) are often connected to complex inventory and sales computer systems.  The ability to recover and read deleted or damaged files from a criminal computer is an example of a law enforcement specialty called- computer forensics.  Surgeons can perform delicate operations by manipulating devices through computers instead of manually. This technology is known as- robotics.  Technology no longer protected by copyright, available to everyone, is considered to be-proprietary.  Nano science is the study of molecules and structures whose size ranges from 1 to 100 nanometers.  Artificial intelligence (AI) is the science that attempts to produce machines that display the same type of intelligence that humans do.  The name for the way that computers manipulate data into information is called:-processing.  In the binary language each letter of the alphabet, each number and each special character is made up of a unique combination of-eight bits.  The term bit is short for- binary digit.  The components that process data are located in the- system unit  The U and memory are located on the- motherboarD.  Word processing, spreadsheet, and photo-editing are examples of-application softwarE.  Software is a set of computer programs used on a computer to help perform tasks.  The PC (personal computer) and the Apple Macintosh are examples of two different-platforms.  Servers are computers that provide resources to other computers connected to a-network.  Supercomputers are specially designed computers that perform complex calculations extremely rapidly.  DSL is an example of a broadband connection.  The difference between people with access to computers and the Internet and those without this access is known as the-digital dividE.  Nanotechnology is the science revolving around the use of nanostructures to build devices on an extremely small scalE.  A byte can hold one character of datA.  The operating system controls the way in which the computer system functions and provides a means by which s can interact with the computer.  Embedded computers are specially designed computer chips that reside inside other devices, such as your car or your electronic thermostat.  The steps and tasks needed to process data, such as responses to questions or clicking an icon, are called: A. instructions-the operating system.  The metal or plastic case that holds all the physical parts of the computer is the-system unit. Input devices are used to provide the steps and tasks the computer needs to process data, and these steps and tasks are called instructions.  When you connect to the Internet your computer is communicating with a server at your Internet service provider (ISP)  The earlier computers, which were massive in size, were based on vacuum tubes.  Early computing machines, like the ENIAC, were actually meant to assist the armed forces.  An improvement on the ENIAC, which pioneered 'stored program', was made possible with the help of the mathematician John von Neumann.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam  The B-programming language was developed by Ken Thompson.  Famous people, associated with the ENIAC, EDVAC, UNIVAC computers are Eckert & Mauchly.  The 1st commercially produced and sold computer (1951) was UNIVAC.  IBM was provided software for PCs by Microsoft.  The transformation from heavy computers to PCs was made possible using microprocessors.  The first microprocessor was developed in 1971 by Intel.  The term 'micro' (extremely small) denotes 10-6m.  The Harvard student, who chose to write computer programs and dropped studies was Bill Gates.  A Pentium 4 (P-4) employs roughly 40 million transistors.  A program used to browse the web is called Web browser.  An error in software deg which can even cause a computer to crash is called bug.  The device which sends computer data using a phone line is called MODEM.  The first home computer (1977), which was sold in millions of units was Apple II.  'PARAM-8000' is a First supercomputer in India.  A website containing periodic posts is called blog.  The unwanted or non-requested emails are called "spam".  A computer framed to give various network services is called server.  The first computers were programmed using Machine language.  A filename is a unique name that you give to a file of information.  A series of instructions that tells a computer what to do and how to do it is called a program.  Super computers refers to the fastest, biggest and most expensive computers  The rectangular area of the screen that displays a program, data, and or information is a window  The process of a computer receiving information from a server on the internet is known as ing  You can use the tab key to move a cursor across the screen, indent a paragraph.  A collection of related files is called record.  Storage that retains its data after the power is turned off is referred to as non-volatile storage.  Testing is the process of finding errors in software code.  Syntax contains specific rules and words that express the logical steps of an algorithm.  Changing an existing document is called the editing documentation  The windows key will launch the start buttons.  To move to the beginning of a line of text, press the home key.  Information travels between components on the motherboard through buses.  A tool bar contains buttons and menus that provide quick access to commonly used commands  One advantage of dial-up internet access is it utilizes existing telephone security  Protecting data by copying it from the original source is backup

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam  In a relational database, table is a data structure that organizes the information about a single topic into rows and columns.  When the pointer is positioned on a hyperlink it is shaped like a hand .  A compiler translates higher level programs into a machine language program, which is called object code  The ability to find an individual item in a file immediately Direct access .  Each box in a spread sheet is called a cell.  Network components are connected to the same cable in the bus topology.  Scanner will translate images of text, drawings and photos into digital form.  MS-DOS is a single operating system  Ethernet is used for high speed telecommunications  FORTRAN is a scientific computer language  Connections to the internet using a phone line and a modem are called dial-up connections  Restarting a computer that is already on is referred to as warm booting  A cluster represents a group of sectors  Boot sector viruses are often transmitted by a floppy disk left in the floppy drive  A goal of normalization is to minimize the number of redundancy  A proxy server is used to process client request for web pages  When data changes in multiple list and list are not updated, this causes data inconsistency  Granting an outside organization access to internet web pages is often implemented using a extranet  The code that relational database management systems use to perform their database task is refer to as SQL  Data integrity means that the data contained in the database is accurate and reliable  The IBM made the first electronic computer in 1953  Control is used for increasing and decreasing the speed of the cursor of mouse  The .mpeg is the format of a movie file  The memory address sent from the U to the main memory over a set of wires is called address bus  The enhanced keyboard contains 101 keys  Cache memory is a part of main memory  The central host computer or file server in a star network maintains control with its connecting devices through polling  The integration of all kinds of media such as audio, video, voice, graphics and text into one coherent presentation combined is called multimedia  A technique for searching special databases, called data warehouses, looking for related information and patterns is called data mining  Batch processing is a technique in which a number of similar items or transactions are processed in groups or batches during a machine run  Browser is a link between the computer and the internet. It’s actually a program that provides a way to look in the hand interact with all information on the internet. A browser is a client program that uses the Hypertext Transfer Protocol (http)  Computer Crime: The act of stealing, cheating or otherwise defrauding an organization with the use of a computer  Cryptography: Method used to protect privacy and security on the internet  Digital signature: Encrypted signature used for providing security for the messages/data transferred through the internet  E-commerce: Business transactions conducted over extranets or the internet  Electronic data interchange (EDI) : Electronic transmission or documents through point to point connections using a set of standard forms, message and data elements, this can be via leased lines private networks or the internet

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam

ANSI—American National Standards Institute ARPANET—Advanced Network ASCII—American Interchange ISCII— Indian

Research

Standard Standard

EEPROM—Electronically

Projects

Code Code

for for

Agency

Erasable

Programmable

Read-Only Memory EPROM—Erasable Programmable Read-Only Memory

Information

FDD—Floppy Disk Drive

Information

GUI—Graphical Interface HDD—Hard Disk Drive

Interchange ASP—Active Server Pages

HTML—Hypertext Markup Language HTTP—Hypertext Transfer Protocol

BASIC—Beginner's All-Purpose Symbolic Instruction Code

HTTPs—Secure Hypertext Transport Protocol ISO—International Organization for Standardization

CDMA—Code Division Multiple Access

ISP—Internet Service Provider

CD-R—CD-Recordable CD-RW—CD-Rewritable

Kb—Kilobit KB—Kilobyte

COBOL—Common Business-Oriented Language DBMS—Database Management System

LCD—Liquid Crystal Display LIFO—Last In First Out

DVD—Digital Versatile Disc or Digital Video Disc ENIAC—Electronic Numerical Integrator and Computer

MAC—Media Access Control MAPI—Messaging Application Programming Interface

EDSAC—Electronic Delay Storage Automatic Calculator

MTA—Mail Transfer Agent

EDVAC—Electronic Computer

OSS—Open-Source Software PAN—Personal Area Network

Discrete

Variable

Automatic

USB—Universal Serial Bus

PERL—Practical Extraction and Reporting Language AMD – Advance Micro Device

VLAN—Virtual Local Area RDBMS–Relational Database Management System

ASPI – Advacne Scsi Programming Interface ASIC – Application Specific Integrated Circuit

XML–Extensible Markup Language

USB – Universal Serial Bus.

ASP–Active Server Pages API–Application Programming Interfaces

VIRUS – Vital Information Resource Under Seized. MIME–Multipurpose Internet Mail Extensions

CSS–Cascading Style Sheets ASCII–American Standard

JAD – Java Application Development MIDI – Musical Instrument Digital Interface

Code

For

Information

Interchange XSL- Extensible Style Sheet Language

MPEG – Motion Picture Experts Group PDF – Portable Document Format

AVI – Audio Video Interleaved

SQL—Structured Query Language

CDA – Compact Disk Audio DLL – Dynamik Link Library

SRAM—Static Random Access Memory TTL—Transistor-Transistor Logic

JPEG – t Photographic Expert Group VHF – Very High Frequency.

UML—Unified Modeling Language RAID—Redundant Array of Independent Disks

UHF – Ultra High Frequency.

RDBMS—Relational Database Management System

ALU- Arithmetic Logic Unit URL – Uniform Resource Locator.

RISC—Reduced Instruction Set Computer GIF – Graphics Interchange Format

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Page 25

Computer Capsule – IBPS PO, RRB & Clerk Mains Exam

1.Windows Explorer is a _______________?

7.EDVAC computer belongs to which Generation?

A. Drive

B. Browser

A. 1st Gen

B. 2nd Gen

C Network E.File Manager

D. Data Base

C. 3rd Gen E. 5th Gen

D. 4th Gen

2.Which of the following s tunneling protocols to

8. POP stands for____________________

securely send private network data over the network? A. VPN B. WAN

A. Peer to peer Protocols B. Peer to Post Protocol C. Peer Office Protocols D. Post office Protocols

C. LAN

E. None of these

D. GPS

E. MAN 9. Which of the following is used for cable network ? 3.What is Redhat? A. Firmware

A. VPN C. LAN

B. Malware

C. antivirus D. An application software E. Open Source Operating System

B. WAN D. GPS

E. MAN 10. Information travels between components on the

4. Usually installation ___________? A. .jpeg C. .doc

files

have

the

extension

B.gif D. .exe

motherboard through__________? A. CMOS B. Buses C..Peripherals E.None of the above

D. Flash Memory

E. .png 11. Internet Explorer is a ________________? 5. The individual dots that from the image on a monitor

A. Drive

B. Browser

are called_________________. A. Bits B. Bytes

C. Network E. File Manager

D. Data Base

C. Pixels E. None of the above

12. Which one is the correct order of memory units-?

D. Pintes

6. ___________ refers to the unauthorized copying and

A.TB>MB>YB>GB>KB B.MB>YB>GB>TB>KB

distribution of software?

C.YB>TB>GB>MB>KB

A. Software Piracy C. Hacking

B. Plagiarism D. Software Literacy

E. None of these

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D.GB>MB>KB>TB>YB 13. How many bits in MAC address? A. 48 bits B. 64 bits

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Page 26

Computer Capsule – IBPS PO, RRB & Clerk Mains Exam C.128bits

D.16bits

18. If you see #### in a cell the meaning is that –

E. 32bits.

A.Row width is low B.Column width is low

14. Which one is called as modifier key? A. Caps Lock key B. Num Lock key

C.Both row and column width is low D.Column and row width is high

C. CTRL key

E. None of these

D. Esc key

15. In OSI Model Router used in which layer?

19.

A.Application Layer C.Network layer

computers,then it will be called as ? A. Application server B. Database server

B.Session layer D. Data link layer

A computer provides database services to other

E.Physical layer

C. File server E. Proxy server

16. Magnetic disk is coated by? A.Silicon B.Iron oxide

20. GUI stands for A.Graphical Instrument

C.Aluminum

B.Graphical unified Interface

D.Glass

D.Web server

E.None of the above

C.Graphical unified Instrument D.Graphical Interface

17. In HTTPs protocol S stands for A.Source B. Secure

E.Graphically Instrument 21. 1 KB=? Bits-

C.Set E.None of these

A.8193 C.8192

D.Simple

B.8916 D.1024

E.4024

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Page 27

Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 22. The copy command saves to:

E.None of the above

A. the desktop C. Microsoft Word

29. Which of the following will represent 53?

B. the clipboard D. Paste

E. None of these

A.#$$$$# C.$$#$#$

23. Vacuum Tube is the invention ……generation. A. 1st generation B. 2nd gen

E.None of the above

C. 4th gen

D. 5th gen

E. None of these

B.$#$## D.$#$$##

30. Which of the following will represent the value of - ( #$$# + $#$$ * #$$ )= ? A.35 B.36

24. The computer size was very large in ____ A. First Generation B.Second Generation

C.37 E.39

D.38

C. Third Generation E. None of these

31. Which of the following will represent the value of- (

D. Fourth Generation #$#$#$ + $$$$#÷ #$$# )= ?

25. ____ is responsible for overall control and coordination of instruction execution. A. U C. RAM

B. ALU D. Control Unit

E. None of these

A.28 C.26

B.57 D.55

E.None of the above? 32. (3457)8= (?)16 A.725 B.7215

26. Which of the following is the fastest type of

C.72F

computer? A. Minicomputer

E.None of the above.

C. Supercomputer E. None of these

D.72E

B. Mainframe computer D. Digital computer

33. In Normalization BCNF is needed because: A. BCNF is need when the Data is deleted tuples may be

27. Find out the technology of third generation?

lost B. Otherwise tuples may be duplicated

Avecuume tube

B.trangister

C. Updating is otherwise is difficult

C.I.C’s E.None of the above

D.Microprocessor

D. When there is dependent attributes in two possible composite keys one of the attribute is unnecessarily

(28-32).In a code language, the symbol for '0' is '#' and for

duplicated in the tuples. E. None of these

'1' is '$'. Numbers greater than one is to be written only by using the two symbols that given abovE. Follow some

34. In OSI model Data link layer is dived into -

instruction that are given below -

A.MAC and Session layer

A.0 is written as #, C.2 is written as $#,

B.MAC and LLC layer C.MAC and Physical layer

B.1 is written as $, D.3 is written as $$,so on

28. Which of the following will represent 22? A.##$$# C.$#$##

D.LLC and Transport layer E. None of the these

B.$#$$$ D.$#$$#

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Page 28

Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 35. 255.255.255.0 subnet mask of which class?

C. Charles Babbage

A.Class A C.Class C

E. None of these

B.Class B D.Class D

D. Dr. Herman Hollerith

E.Class E 36. __________________ is a set of programs, located at

42. Memory which forgets everything when you switch off the power is known as_____.

a network gateway server that protects the resources of a private network from other networks:

A. Corrupted C. Non-Volatile

A. Root kit

B. Firewall

E. NonE.

C. Sandbox E. None of these

D. Cracker

B. Volatile D. Non-Corrupted

43. Which of the following code used in present day

37.Which of the following is not an input device?

computing was developed by IBM Corporation? A. ASCII B. Hollerith Code C.EBCDIC

A. OCR B. Optical scanners C. Voice recognition device

Code D. Baudot Code E. None of these

D. COM (Computer Output to Microfilm) E. None of these

44. An image editing software in which we can draw and edit images is?

38. Who among the following is the odd one______? A. Mouse B. Scanner

A. PageMaker C. Coral Draw

C. Printer E. None of these

45. Physical components that make up your computer are

B. MS-Paint D. Photo Image E. Front

D. Keyboard known as______.

39. Which is not a storage device? A. Printer B. CD

A. Software C. Hardware

C. Hard disk E. DVD

E. None of these

D. Floppy Disk

B. Operating Systems D. Web Browsers

40. ____ ___technologies is used by banks for faster

46. What is warm booting? A. When a computer is turned on after it has been

processing of large volumes of cheques.

completely shut down.

A. OCR C. MICR

B. When a computer is restarted by pressing the restart button or pressing (ctrl + Alt + Del) key.

B. OMR D. Bar code

E. None of these 41. Who invented Analytical engine? A. Blaise Pascal B. George Bool

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C. A. or B. D. NonE. 47. Which of the following is a function of Operating

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Page 29

Computer Capsule – IBPS PO, RRB & Clerk Mains Exam System (OS)? A. Process & Memory Management B. File Management

54. Micro-programming introduced by_____? A. John Mauchley B. Maurice Wilkies

C. Input/Output Management D. All of the above

C. William Shockley E. None of these

48. Which of the following is an example of Single

55. Numbers and formulae entered in a cell are called

Operating System?

_____.

A. MS-DOS C. A. & B.

B. Windows 9X D. None

A. Labels C. Intersection

D. Blaise pascal

B. Numeric entries D. Text

49. Which of the following is an example of Multi

E. Fellers 56.T /IP protocol stack is –

Operating System? A. UNIX

B. LINUX

A.Combination of T and IP Protocol B.A Family of protocol that connect to PCs

C. Windows 2000/2007

D. A. & B. &C.

C.Part of internet

50.MICR stand for?

D.Both b and c E.None of these

A. Magnetic Ink character B. Magnetic Ink Code Reader

57. When talking of software budget –

C. Magnetic Ink Code D. Magnetic Ink character Recognition

A. It includes only direct development cost B. Productivity loss that occurs during IT Training

E. Magnetic Ink cases Reader

C. Indirect cost of budget include training cost

51. Virtual memory is________?

D. both a and c E. None

A. Memory on the hard disk that the U uses an extended RAM.

58. Which of the following makes a network insecure?

B. Access the page table C. U generates a physical address

A. Encryption C. Static keys

D. Automatic storage allocation E. None of thesE.

E. None of these

52. What is the full form of SIM?

59. Artificial Intelligence can be used in every sphere of

A. Station Identity Module B. System Identity Module

life because of its A.Ability to work in hazardous places

C. Subscriber Identity Module D. Subscriber Trunk Dialing

B. Ability to think like human beings C. Ability to work in artificial environments

E. None of these

D. All of the above

53. A ______is a software program used to view Web

E. None 60. Software Quality assurance is for

pages. A. Site

B. Host

A. Error prevention C. Error correction

D. Browser

E. None of these.

C. Link E. None of these

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B. NIC (Network interface card) D. Either B or C

B. Error detection D. Either a or C.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 61. IN OOPS technology hiding the complexity of

C. Save as

characteristics is called as – A. Abstraction

E. None of these

C. Object E. Encapsulation

D. New file

B. Inheritance D. Polymorphism

69. A red wavy line under a word indicates that the word_______.

62. The IP Address 135.0.10.27 belong to the address

A. Is too long for the line of text B. Is not in the dictionary file and therefore might be spelt

class_______?

incorrectly

A. Class A C. Class C

B. Class B D. Class D

C. Is not appropriate for that particular sentence D. Is a verb

E. Class E

E. None of these.

63. Which of the following is not a binary system? A. EBCDIC B. ASCII

70. Windows xp, windows 7, windows 10 are known as…………….?

C. HEX

A. Processors

B. Domain names

C. Modems E. None of these.

D. Operating system

D. Both a and b

E. None 64. 1 AND 1 will give A.1 C. Both A and B E. None

B.0

71. _______ is when the more power-hungry components,

D. 10

such as the monitor and the hard drive are put in idle. A. Hibernation B. Power down C. Standby mode

65. Computer to Computer communication for business transaction is called asA. PIN C.AIM

D. shutdown procedure

E. None of these.

B.EDI. D.Both a and c

E. None 66. Fax machines are used to send documents through a? A. Telephone line C. Co-axial wire

B. Modems D. All of these

E. None of these 67. Date and time are available on the desktop at_________. A. Keyboard

B. Recycle bin

C. My computer E. None of these

D. Task bar

68. To save an existing file with new name at a new location we should use_______command. A. Save B. Save and replace

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Page 31

Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 72. Which of the following is an operating system?

E. None of these

A. Linux C. Mozilla

80. Which of the following computer language is a

B. Debugger D. Google chrome

E. Intel 8085

mathematically oriented languages used for scientific problems?

73. Which of the following cables can transmit data at high speeds?

A. FORTRAN C. LISP

A. Flat cables

B. Coaxial cable

E. APPLE

C. Optic fiber cable E. UTP cable

D. Twisted pair cable

B. COBOL D. PROLOG

81. Which of the following is NOT a computer

74. What is the base of hexadecimal number system? A. 2 B. 8

programming language? A. C

C. 16 E. None of these..

C. Java E. Microsoft

D. 10

B. C++ D. COBOL

75. RTGS stand for_____. A. Real Time Gross Settlement

82. Which of the following is not an operating system? A. DOS B. UNIX

B. Real Time General Settlement C. Run Time Gross Settlement

C. MAC (OS) E. Windows XP

D. Regular Time General Settlement E. None of these

83. One nibble is equal to how many bits?

D. DBMS

A. 4 bits

B. 8 bits

76. What is the name given to the temporary storage area that a web browser uses to store pages and graphics that it

C. 12 bits E. None of these

D. 16 bits

has recently opened? A. Niche

B. Cookies

84. Verification of a name and is known

D. Cellar

as________. A. Configuration

B. Accessibility

C. Authentication

D. Logging in

C. Cache E. None of these

77. Oracle is an example of ______ application software. A. Database B. Word processing

E. None of these

C. Project management E. Desktop

85. Which of the following can be used to select the entire document?

D. Presentation graphics

A. Ctrl+A C. Shift+A

78. MySQL is_____? A. A hierarchical model

B. A RDBMS

C. A relational model E. None of these

D. A Database

E.Ctrl+H 86. Which of the following will you require to hear music on your computer? A. Video Card

79. Primary key is a ______? A. Common key C. Input key

B.Alt+F5 D.Ctrl+K

B. Unique key D. Output key

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C. Mouse E. None of these

B.Sound Card D. Joy Stick

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 87. Layer which converts data frames into bits and also

94. ICMP stands for____________?

convert bits into frames is known as………. A. Data Link Layer B. Transport Layer

A. Internet Control Message Protocol B. Internet Connection Management Protocol

C. Session Layer

C. Internet Control Management Protocol D. None

D. None

88. Layer which deals with router.............. A. Network Layer B. Transport Layer

95. What is the meaning of OSI, in of computers? A. Open Software Interrelation

C. Session Layer

B. Open System Interrelation

D. None

89. Layer which manages MAC address ……… A. Presentation Layer C. Session Layer

B. Transport Layer D. Data Link Layer

C. Open System Interconnection D. Open Software Interconnection E. None of these

90. Layer which establishes, maintains & terminates a

96. USB in data cables stands for? A. Unicode smart Bus B. Universal structural Bus

connection while communicating with other client is

C. Unicode Serial Bus

known as……… A. Presentation Layer

E. None of these B. Transport Layer

C. Session Layer

D. None

D. Universal serial Bus

97. You must install a (n) ____________ on a network if you want to share a broadband Internet connection.

91. Layer which translates data format & deals with compression of data and network security is known

A. router C. node

B. modem D. cable

as………

E. None of these

A. Presentation Layer B. Application Layer

98. To reload a web page, press the _____button.

C. Session Layer D. None

A. Redo C. Restore

B. Reload D. Ctrl

E. Refresh 92. Layer which is the interface to access the network services such as file transfer/ database access is

99. ________ mouse uses laser rays for the movement of

known as……… A. Presentation Layer

curser. A. Mechanical mouse

B. Application Layer C. Session Layer

C. Magnetic mouse E. None of these

B. Optical mouse D. Normal mouse

D. None 100. Disk access times are measured in ______? 93. A long message that needs to be transmitted is broken

A. minute

B. Milliseconds

into smaller packets of fixed size for error free transmission is termed as……..

C. Hours E. None of these

D. seconds

A. Data Sequencing B. Flow Control

101. Blaise Pascal has introduced___________?

C. Error control D. None

A. Adding machine C. Calculator

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B. Abacus D. difference engine

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam E. None of these

E. None of these.

102. Sending an e-mail is similar to _________.

108. What is the name of the software that allows us to

A. Petering an event C. Writing a letter

browse through web pages called? A. Browser B. Mail client

B. Narrating a store D. Creating a drawing]

E. None of these

C. FTP client E. None of these

D. Messenger

103. You can use the ______bar to type a URL and display a webpage or type a keyword to display a list of related webpages.

109. When you purchase a product over a Mobile Phone, the transaction is called_____.

A. Menu C. Search

A. Web commerce C. m-commerce

B. Title D. Web

B. e- commerce D. Mobile Purchase

E. Address

E. None of these.

104. A web ______consists of one or more Web pages

110. Named collection of fields which represent a

located on a Web server. A. Hub B. Site

complete unit of information is called______. A. Field B. Record

C. Story E. None of these

C. Table E. None of these

D. Template

D. File

105. __________are used to identify a who returns to

111. A __________ is a grid with labeled columns and

a Website.

rows.

A. Cookies C. Scripts

B. Plug-ins D. ASPs

A. Dialog box C. Clipboard

B. Worksheet D. Toolbar

E. None of these

E. None of these.

106. The _______specifies the operation to be performed and the operands provide the data on which the operation

112. An example of a telecommunication device is a________.

is to be performed:

A. Keyboard

B. Mouse

C. Modem E. Scanner

D. Printer

A. source code C. object code

B. opcode D. program code

E. None of these 113. Programs that automatically submit your search 107. Which of the following is Open Source Software? A. Windows B. Linux

request to several search engines simultaneously are called______.

C. IOS

A. Metasearch engines

D. Adobe Photoshop

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B. Webcrawlers

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam C. Spiders

D. Hits

E. None of these

A. DNS

B. MNS

C. UTP E. None of these

D. RTP

114. What kind of Protocol is used to provide Internet access from mobile?

121. POST stands for_______.

A. T/IP C. WAP

A. Power On Selfie Test B. Power One Self-Test

B. ISD D. HTTP

E. None of these

C. Power On Self-Test

115. What is the slowest transmission medium?

D. Power On Self-Testing E. None of these

A. Twisted pair wire C. Fiber optic cable

122. Which of the following is a network in which

B. Coaxial cable D. All of above

E. None of these

computers are located physically close together, often in the same building?

116. What is an e-mail attachment?

A. LAN

B. WAN

A. A receipt sent by the recipient B. A separate document from another program sent along

C. RAM E. None of these

D. ROM

with an e-mail message C. A malicious parasite that feeds off of you messages

123. Programs such as Mozilla Firefox that serve as

and destroys the contents D. A list of CC and BCC recipients

navigable windows into the Web are called__________. A. Internet B. Data card

E. None of these

C. Web browsers

D. RAM

E. None of these 117. The _________program compresses large files into a smaller file. A. WinZip C. WinStyle E. None of above

B. WinShrink D. Microsoft

124. Start A. exit

or

C. boot E. None of these

restart

the computer B. kick

means

D. kick-start

118. The _________folder retains copies of message that you have started but are not yet ready to send.

125. You click at B to make the text ________. A. Italics B. Underlined

A. Inbox C. Drafts

C. Italics and under lined D. Bold E. None of these

B. Outbox D. Sent Items

___.

E. Address Book 126. Each ______ on a menu performs a specific action. 119. Which is not an internet protocol?

A. Client

B. Server

A. HTTP C. STP

C. Node E. None of these

D. Command

B. FTP D. UDP

E. None of these 127. An e-mail address typically consists of a ID 120. What kind of server converts IP addresses to domain names?

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followed by the ____ sign and the name of the e-mail server that manages the ’s electronic post office box.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam A. @

B. #

C. & E. None of these

D. *

135.A Central Computer that holds collections of data and programs for many PC’s Workstations, and other

128. _______are devices used to transmit data over

computers is a(n) __________ A.Super computer B.Mini computer

telecommunications lines. A. Drives B. Drives bays

C.Laptop E.Palmtop

C. Modems

D.Server

D. Platform

E. None of these

136.T stands for A.Transmission Control Protocol

129. What is the file extension of MS-Power point? A. .exe B. .xls

B.Telnet Control Protocol C.Transmission Channel Protocol

C. .ppt E. None of these

D.Transmission Cross Protocol E.None of the above

D..pst

130. The information stored in the catalog is called ________.

137.An email feature, which is used to send a copy of an email to one or many other people at the same time that

A. Meta-data C. Record

you are sending it to the main recipient/s is called A.CC B.BCC

B. Mini-world D. All of these

E. None of these

C.To E.None of the above

B.From

131.Which type of memory holds only the program and data that the U is presently processing? A.CMOS B.ROM

138. Which of the following uses the handheld operating system?

C.RAM E.None of these

A.Supercomputer C.Mainframe

D.Pen Drive

B.Personal Computer D.PDA

E.None of the above 132.Pick the odd oneA.Mouse

B.Touch Screen

139.The software that is used to create text based

C.Keyboard E.Light Pen

D.Scanner

documents are referred to asA.DBMS B.Word processors

133.Computer Literacy day is celebrated on ____?

C.Spreadsheet E.None of the above

A.1 December C.2 December

140.__________is the process to detect and remove the

B.5 December D.5 September

E.8 October

errors in software code.

134.Which of the following can only have Sequential

A.Testing C.Debugging

Access? A.Disk C.Tape E.None of these

D.Presentation software

B.Compiling D.Programming

E.None of the above B.CD-ROM D.DVD-ROM

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141.Computers that control processes, accept data in a continuous.....

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam A. data traffic pattern

B. data highway

C. infinite loop

D. loop

149. A program either talk or music that is made available in digital format for automatic over

142. A language reflects the way people think mathematically is.....

the internet is called A..... A. wiki B. broadcast

A. cross platform programming B. functional

C.vodcast

C. event driven programming

150. A USB communication device that s data

D. 3GL business programming

encryption for secure wireless communication for notebook s is called A...

143. A mistake in an algorithm that causes incorrect results is called A....

A. USB Wireless Network adapter B. wireless switch

A. logical error C. procedural error

C. wireless hub D. router

B. syntax error D. compiler error

D. podcast

144. A device for changing the connection on a connector to a different configuration is....

151. The connection between your computer at home and your local ISP is calleD.....

A. a converter C. an attachment

A. the last mile C. the home page

B. a component D. an adapter

B. the home stretch D. the vital mile

145. Technique that is used to send more than one call

152 ....are attempts by individuals to obtain confidential

over a single line is

information from you by falsifying their identity through

A. Digital transmission C. Streaming

B. Infrared transmission D. Multiplexing

e-mails. A. Phishing trips

B. Viruses

C. Phishing scams

D. Spyware scams

146. Which of the following would you find on LinkedIn? A. Games C. Chat

B. Connections D. Applications

153. ERP is an acronym for.... A.Enterprise Relationship planning B.Enterprise Resource planning

147. The method of Internet access that requires a phone line, but offers faster access speeds than dial-up is

C.Enterprise Reorder planning D.None.

thE.....Connection A. Cable access

154. Collecting personal information and effectively

B. Satellite access C. Fiber optic service

posing as another individual is known as the crime of .. A. spooling B. spoofing

D. Digital Subscriber Line (DSL)

C. hacking

148. ......is a form of denial of service attack in which a

155. Which ports connect special types of music

hostile client repeatedly sends SYN packets to every port on the server using fake IP addresses.

instruments to sound cards? A. BUS B. U

A.Cyber crime C.Synflooding

C. USB D. Musical Instrument D.Digital Interface (MIDI)

B. Memory shaving D. Software Piracy

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D. identity theft

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 156. Where you are likely to find an embedded operating system? A. On a desktop operating system B. On a networked PC C. On a PDA D. On a Mainframe.

164. Human beings are referred to as Homo sapiens, which device is called Silico Sapiens? A. Monitor

B. Hardware

C. Robot

D. Computer

165. EBCDIC can code up to how many different 156. Name of the fist computer in IndiaA. Sidharth B. Param 10,000 C. CDC-6600 D. C-DAC 158. Which of the following places the common data elements in order from smallest to largest? A. Bit, byte, character, record, field, file, database B. Database, file, record, field, character C. Character, file, record, field, database D. Character, field, record, file, database 159. Which protocol provides e-mail facility among different hosts? A. File Transfer Protocol (FTP) B. TELNET C. Simple Mail Transfer Protocol (SMTP) D. Simple Network Management Protocol (SNMP)

characters? A. 256

B. 16

C. 32

D. 64

166. Different components of the motherboard of a PC unit are linked together by sets of parallel electrical conducting lines. What are these lines called? A. Conductors

B. Buses

C. Connectors

D. Consecutive

167. Which is the first automatic electronic digital computer? A. ENIAC

B. MARK I

C. Z3 D. ABC (Atanasoff –Berry Computer)

160. Which of the following memory is non-volatile? A. DRAM B. SRAM C. ROM

D. None of the above

161. What is embedded system? A. The programme which arrives by being wrapped in box. B. The programme which is the permanent part of the computer C. T1he computer which is the part of a big computer. D. Some combination of computer hardware and software. 162. Which device connects a LAN to the Internet? A. Adapter B. Repeater C. Router D. None of the above 163. Signals can be analog or digital and a computer that processes the both type of signals is known as? A. Analog computer B. Digital Computer C. Hybrid Computer D. Mainframe Computer

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 168. India’s first supercomputer is

C. Compiler

A. Cyber 205 C.Anupam

176. Who designed the first electronics computer

B.Aaditya D. PARAM 8000

D. Commander

169. The metal disks, which are permanently housed in,

(ENIAC)? A. Von Neumann

sealed and contamination free containers are called? A. Hard disks B. Floppy disk

B. John Eckert & John Mauchly C. Joseph M Jacquard

C. Winchester disk

D. None of the above

D. Flexible disk

170. What was the name of the first commercially

177. A device driver acts like a……. between the device

available microprocessor chip? sA. Intel 308 B. Intel 33

& OS A. inverter

B. converter

C. Intel 4004

C. translator

D. None

D. Motorola 639

171. The first digital computer built with IC chips was

178. Computers can be divided into…..major categories.

known as A. IBM 7090

B. Apple - 1

A. Four ( Micro, Mini, Mainframe, Super) B. Three C. One

C. IBM System / 360

D. VAX - 10

D. None

172. RATS stands for A. Regression Analysis Time Series

179. SAN stands for A. Storage Area Network

B. Regression Analysis Time Sharing

B. Super Array Network

C. Real Analysis Series D. All of above

C. Shared Area Network D. None

173. The magnetic storage chip used to provide non-

180. NAS stands for

volatile direct access storage of data and that have no moving parts are known as

A. Network Area Service B. Network Attached Storage

A.Magnetic core memory

C. Network Attached Service

B.Magnetic tape memory C.Magnetic disk memory

D. None

D.Magnetic bubble memory

181. To produce high quality graphics (hardcopy) in color, ……… is used

174. A computer program that converts an entire program into machine language is called a/an

A. RGB monitor C. Ink-jet printer

A. Interpreter

B. Simulator

C. Compiler

D. Commander

B. Plotter D. Laser printer

182. The scrambling of code is known as A. Encryption B. a firewall

175. A language translator that analyses and executes the source code in-line-by-line manner without looking at the

C. Scrambling

entire program is called a/an A. Interpreter B. Simulator

183. A type of message that web servers to your web browser when you visit the website

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D. None

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam A. Cache

B. Spam

C. None

D. Cookie

C. Accumulator

D. None

191. Computer is free from tiresome and boardroom. We 184. Software that you can use free of charge for a set perioD. After that you have to buy it to keep working is

call it A. Accuracy

B. Diligence

known as A. Freeware

C. Versatility

D. None

B. Shareware

C. Software

D. None

185. A type of virus (malicious code) that looks for

192. Integrated Circuits (ICs) are related to which generation of computers? A. First generation B. Second generation

security loopholes in a system and uses that to replicate itself is known as

C. Third generation

A. Worm C. Trojan Horse

193. Which type of computers uses the 8-bit code called EBCDIC?

B. Threat D. None

A. Minicomputers

D. None

B. Microcomputers

186. RAID stands for________ A. Reproduce Array of Intelligent Disks

C. Mainframe computers D. None

B. Reproduce Array of Inexpensive Disks C. Redundant Array of Inexpensive Drives

194. The ALU of a computer responds to the commands coming from

D. Redundant Array of Inexpensive Disks

A. Primary memory C. External memory

B. Control section D. Cache memory

187. Software that monitors your online computer activities is known as A. Malware

B. Spyware

C. Freeware

D. None

195. A physical connection between the microprocessor memory and other parts of the microcomputer is known as A. Path

B. Address bus

188. Software that is made available at no cost and is sometimes used to entice a to purchase the

C. Route

D. All of the above

unbranded version with no advertising.

196. A technique used by codes to convert an analog

A. Malware C. Freeware

signal into a digital bit stream is known as A.Pulse code modulation B.Pulse stretcher

B. Spyware D. None

189. Which is used to display one or more web pages

C.Query processing D.Queue management 197. The terminal device that functions as a cash ,

within another normal web page? A. IFRAME B. Hyperlink

computer terminal, and OCR reader is the? A. Data collection terminal

C. Home page

B. OCR terminal

D. None

C. Video Display terminal D. POS terminal 190. storage area used to store data to a compensate for the difference in speed at which the different units can

198. A set of flip flops integrated together is called ____

handle data is A. Memory

A. Counter C.

B. Buffer

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B. Adder D. None of the above

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 205. The most commonly used standard data code to 199. A organized to allow moving left or right operations is called a ____

represent alphabetical, numerical and punctuation characters used in electronic data processing system is

A. Counter C. Adder

called A. ASCII

B. EBCDIC

C. BCD

D. All of the above

B. Loader D. Shift

200. How many address lines are needed to address each machine location in a 2048 x 4 memory chip?

206. Hard disk is coated on both sides with

A. 10 C. 8

A. Magnetic metallic oxide B. Optical metallic oxide

B. 11 D. 12

201. Multi systems provided cost savings for small

C. Carbon layer D. All of the above

business because they use a single processing unit to link several

207. The contents of information are stored in

A. Personal computers

B.Workstations

A. Memory data

C. Dumb terminals

D. Mainframes

B. Memory address C. Memory arithmetic s

202. The difference between memory and storage is that memory is ___ and storage is __

D. Memory access

A. Temporary, permanent B. Permanent, temporary

208. The programs which are as permanent as hardware and stored in ROM is known as

C. Slow, fast

A. Hardware

B. Software

D. All of the above

C. Firmware

D. ROM ware

203. Which of the following is the first computer to use Stored Program Concept?

209. Which of the following memories must be refreshed many times per second?

A. UNIVAC C. EDSAC

A. Static RAM C. EPROM

B. ENIAC D. None of above

204. 1 nibble equals to A. 1 bits

B. 2 bits

C. 4 bits

D. 8 bits

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B. Dynamic RAM D. ROM

210. In which mode, the communication channel is used in both directions at the same time? A. Full-duplex C. Half-duplex

B. Simplex D. None of the above

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 211. Which of the printers used in conjunction with

A. the possibility of 24-hour access for s

computers uses dry ink powder? A.Daisy wheel printer B. Line printer

B. creating a system that can extend globally C. standardizing the design of the interface

C. Laser printer

D. All of these

D. Thermal printer

212. Daisy wheel printer is a type of A. Matrix printer B. Impact printer

220. Which of the following domains is used for profit businesses?

C. Laser printer

A. .com

B. .edu

C. .net

D. None

D. Manual printer

213. Which of these is considered intelligent CASE tool? A. Workbench C. Upper CASE

B. Toolkit D. Lower CASE

214. Origin of internet can be tracked from A. Satellite networks

221. Which of the following domains is used for nonprofit organizations? A. .org C. .net

B. .edu D. None

B. Radio networks

C. ARPANET (Advanced Research Projects Agency Network)

222. Browsers can be classified into two types. They are A. Graphical & Text B. Graphical & Navigational

D. None

C. Text & Pictorial

215. System proposal is prepared in ……phase of SDLC. A. Conception B. Initiation

223. The displayed data over internet can be classified into two types. They are

C. Analysis

A. Static & Dynamic

B.Graphical&Text

C. Data & Voice

D. None

D. Design

D. None

216. A data warehouse A. Contains numerous naming conventions and formats B. Is organized around important subject areas

224.Which is an open source development environment to develop dynamic web pages?

C.Contains only current data D.None

A. PHP (Hypertext Preprocessor) B. XML C. VB Script D. None

217. To connect networks of similar protocols, ……..are used

225. A protocol that allows a to log on to a remote computer which is also known as remote is…..

A. Routers C. Bridges

A. FTP C. HTTP

B. Gateways D. None

B. Telnet D. None

218.……….. is one reason for problems of data integrity

226. A set of rules that enables a to log on to another

A. Data availability constraints

computer and transfer information between it & his/ her

B. Data inconsistency C. Data redundancy

computer. A. HTTP

B. FTP

D. None

C. WWW

D. None

219. Which of the following is an advantage of mounting an application on the web?

227. PSTN stands for A. Public Switched Transformation Network

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam B. Public Switched Telephone Network

A. Soft loading

B. Counterfeiting

C. Public Serviced Telnet Network D. None

C. Renting

D. All of these

235. Linux is a type of ……….. Software A. Open Source B. Public Domain

228. Home Page is also known as A. Index Page C. Back Page

B. Front Page D. None

C. Commercial

D. None

236. A coding language that is compatible with windows 229. GPRS stands for A. Global Packet Radio Service

servers which is used for increased functionality on a website or to work with a database

B. Global Positioning Radio Service C. General Packet Radio Service

A. HTML C. XML

B. ASP D. None

D. None 237. A code that represents English characters as 230. GSM stands for

numbers and ranging from 0 to 127.

A. Global System for Mobile B. Global Service for Mobile

A. ASCII C. BCD

C. Global System for Mobile communication D. None

238. An email feature, which is used to send a copy of an

231. T stands for

email to one or many other people at the same time that you are sending it to the main recipient/s is called

A. Transmission Control Protocol

A. CC

B. BCC

B. Telnet Control Protocol C. Transmission Channel Protocol

C. To

D. None

D. None

239. An email feature which is used to send someone a BCC email, their email address will not show in the "to"

232. Proprietary Software is also called as A. Closed Source Software

field A. CC

B. BCC

B. Open Source Software

C. CC & BCC

D. None

C. Commercial Software D. None

240. GUI stands for

233. A product that is owned exclusively by a single

A. Graphic Uninstall/Install B. Graphical Interface

company that can only function properly, if it is used with other products owned by the same company?

C. General Utility Interface D. None

B. EBCDIC D. All of above

A. Proprietary Software B. Public Domain Software C. Commercial Software

241. A….. is a design tool that graphically shows the logic in a solution algorithm.

D. None

A. Hierarchy Chart C. Structure Chart

B. Flow Chart D. None

234. Which of the following activity can be termed as software piracy?

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 242. Programs designed to perform specific tasks related

A. T

B. POP3

to managing computer resources are called A. System Software B. Utility Software

C. FTP

D. None

C. Application Software

250. Which of the following format for storing & backing up computer data on tape that evolved from Digital Audio

D. None

243.A ….. contains buttons & menus that provide quick access to commonly used commands.

Tape (DAT) technology? A. Data Aggregation

A.menubar

B. toolbar

C. Virtual Tape System D. None

C. window

D. None

B. Digital Data Storage

251. The two basic parts of URLs are 244. What is the split – MAC Architecture? A. The split-MAC architecture uses MAC addresses to

A. T & IP C. T & FTP

create a forward/filter table and break up collision domains.

252. The storage locations in the internal storage of a

B. The split-MAC architecture uses MAC addresses to

U is called

create a forward/fliter table C. Both A.&B.

A. reference points C. locations

B. the protocol & the domain name D. None

B. addresses D. None

D. None 253. ATM machines run ……. OS 245. In …..normal form, all non-key fields of data structure are dependent on the whole key. A. First

B. Second

C. Third

D. None

A. Open Source C. embedded

B. Closed Source D. None

254. The fraudulent practice of sending emails purposing to be from reputable companies in order to induce

246. Which of the following are tasks that may be completed when configuring your e-mail client?

individuals to reveal personal information(Credit & Debit card details) is called

A. Provide the IP address of your ISP’s mail server B. Provide the name of your e-mail

A. Hot swapping of devices C. Phishing

B. Pharming D. None

C. All of these D. None of these

255. NIC stands for A. Network Internal Card

247. A pixel is a…… A. picture element or dot on a screen

B. Network Interconnection Channel C. Network Interface Card

B. point of ink on a laser printed page C. point of ink on an ink jet printed page

D. None

D. None

256. ---- Is the Virus that overwrites the files or a few

248. Expansion cards are inserted into

parts being replaced? A. Virus B. File infectors

A. U C. Peripheral devices

B. Slots D. None

C. worm

D. None

249.…….. is a communication technology used by some incoming mail servers.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 257. An Internet service that translates domain names to the IP addresses is called A. CMS B. ASP C. DNS

D. None

258. A hacker installs malicious code on a personal computer or server. This code then redirects clicks you make on a Web site to another fraudulent Web site without your consent or knowledgE. It is known as…. A. Phishing B.Smishing C. Pharming

D. None

259. The act of using the telephone in an attempt to scam the into surrendering private information that will be used for identity theft. A. Pharming C.Vishing

B.Smishing D. None

260. A type of phishing attack where mobile phone s receive text messages containing a Web site hyperlink is called A. Pharming

B.Smishing

C.Vishing

D. None

264. Spam over instant messenger is called spim while spam over Internet telephony is known as A. Malware B. Spit C. Pharming D. None 265. The unauthorized activities of malicious software is called A. Pharming B. Payload C. Phishing D. None 266. Unauthorized access to restricted systems or resources is referred as A. Pharming B. Penetration C. Phishing D. None 266. Which Key is used for editing a cell? A. F2 B. F5 C. F3 D. F4 268. Unauthorized access to information by using a terminal that is already logged on with an authorized ID is called A. Piggybacking B. Penetration C. Phishing D. None

261. The creation of Internet Protocol (IP) packets with a forged source IP address, with the purpose of concealing the identity of the sender or impersonating another computing system is called ………….. A. Pharming

B. Spoofing

C.Vishing

D. None

262. A malware program that can be used by a black hat cracker to remotely take control of a system for further attacks like spam emails or Denial of Service attacks, without a ’s knowledge is called…… A. Zombie

B. Spoofing

C.Vishing

D. None

263. Ethical hackers who use their skill to secure the integrity of computer systems or networks is called A. Black Hat C. Green Hat

B. White Hat D. None

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 269. Any deliberate damage to operations or equipments

A.Logic bomb

is called A. Piggybacking

B. Sabotage

B. Exploit C. Mail bombing

C. Phishing

D. None

D. None

270. Sending large numbers of unwanted e-mail messages to a single recipient or to a group of such recipients is

276. The most widely used type of database management system is the

termed as

A. Flat databasE.

A.Logic bomb C. Time bomb

B. Mail bombing D. None

B. Network databasE. C. Relational database D. Hierarchical databasE.

271. Malicious modification or destruction of data such as changing information on Web sites is called A. Super zapping B. Vandalism

277. IBM 370 belongs to which generation? A. 1st generation B. 2nd generation

C. Spamming

C. 3rd generation D. 4th generation

D. None

E.None of the above 272. Overwhelming or saturating resources on a target system to cause a reduction of availability to legitimate s is termed as

278. Which of the following will connect you to the Internet?

A.DistributedDoS attack B. Denial of Service (DoS) attack

A.HTTP B. Internet service provider

C. Data Diddling

C. A network connection

D. None

D. None

273. Creating a false identity using someone else’s identifying information Computer Questions Thinking of

279. A method in which multiple communication devices are connected to one another efficiently is known as……

Gov. Job Think IBT A.DistributedDoS attack

A. Switching C. Capacity

B. Redundancy D. None

B. Identity Theft C. Data Diddling D. None

280. What is considered as the 'backbone' of the World Wide Web?

274. A program or batch file that waits for a specific time

A. URL C. HTTP

before causing damage is…… A.Logic bomb

281. MIME stands for

B. Time bomb

A. Multipurpose Internet Mail Extension

C. Mail bombing D. None

B. Multicasting Internet Mail Extension C. Multiple Internet Mail Extension

B. HTML D.None

D. None 275. A method for exploiting a vulnerability to take control of a system or otherwise compromise it is termed as…….

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282. FPI stands for____ A. Figure per inch

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam B. Frames per inch

289. A networking device that is used to receive signals

C. Faults per inch D. None

from one Computer & transmit them on to other computers in a network is called……..

283. The process of analyzing large data sets in search of

A. Repeater C. Bridge

new, previously undiscovered relationships is known as: A. data mining

290. An intelligent Hub that has the ability to determine

B. data marting

the destination of a packet sent across the network is

C. data maintenance D. data warehousing

called……… A. Repeater

B. Switch

C. Bridge

D. None

B. Hub D. None

284. Collection of interrelated data and set of program to access them is called A. Database

291. A most Sophisticated relay device used in a network that can be used to interconnect systems with different

B. Database Management System

protocols, formatting languages and architecture is

C. Data Structure D. data warehousing

called……… A. Gateway

B. Switch

C. Bridge

D. None

285. A repository of data that is designed to serve a particular community of knowledge workers is called A.datamart

292. CSMA/CD stands for A. Carrier Sense Multiple Access with Correction

B. data maintenance

Detection

C. data warehousing D. None

B. Code Sense Multiple Access with Collision Detection C. Carrier Sense Multiple Access with Collision

286. Keys that are used in combination with some other

Detection D. None

key, they have been programmed to perform certain tasks is called

293. A……is required at each end to absorb the signal so

A. Function keys

that it does not reflect back across the bus.

B. Alphanumeric keys

C. Modifier keys( Alt, Ctrl) D. None

A. gateway C. bridge

B. terminator D. None

287. Which is used to connect a computer to the cabling used in LAN?

294. Bus Topologies can be classified into two types. It

A. Network Interface Card B. Router

includes A. Regular Bus

B. Local Bus

C. Modem

C. Both A.&B.

D. None

D. None 295. A list of rules for transferring data over a network is 288. A device that regenerates the signal transmitted on a cable in a network is called

called? A. Protocol

B. Program code

A. Repeater C. Bridge

C. Rules

D. None

B. Router D. None

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 296. Star topologies are normally implemented using a A. Unshielded Twisted Pair cable B. Twisted Pair cable

303. An Interface refers to a specification by which programs can communicate with a web server is called

C. Fiber Optic Cable D. None

A. Graphical Interface (GUI) B. Musical Instrument Digital Interface (MIDI)

297. A set of stations connected serially by cable is

C. Common Gateway Interface (CGI) D. None

known as A. Star topology C. Ring topology

B. Bus topology D. None

298. OSI stands for

304. VoIP stands for A. Video Over Internet Protocol B. Voice Over Internet Protocol C. Voice On Internet Protocol

A. Open Systems Interconnection B. Open Source Interconnection

D. None

C. Open Service Interconnection

305. The two application protocols most commonly

D. None

associated with A. Network File System (NFS)

299. Layer which deals with the transportation of binary data and defines cable & electrical specifications is

B. Common Internet File System (CIFS) C. Both A.&B.

known as………. A. Data Link Layer

D. None

B. Physical Layer

306. An attacker outside your network pretends to be a

C. Session Layer D. None

part of your network or legal terminal is called… A. Attacks

300. IDRP stands for

B. IP Spoofing C. Identity Theft

A. ICMP Repeater- Discovery Protocol B. ICMP Router- Discovery Protocol

D. None

C. IDRP Router- Discovery Protocol

307. What is Real Time Operating System (RTOS)?

D. None

A. More than one processes can be executed concurrently. B. Processing is done with a time constraint

301.RSS Stands for A. Rich Site Summary

C. A type of OS which do not interact with a computer directly.

B. Really Simple Syndication C.A. or B.

D.An OS which use multiple central processors to serve multiple real time applications.

D. None 302. What is the full form of UDP?

308. What is Batch Processing Operating System (RTOS)?

A. Upper Divisional Protocol B. Datagram Protocol

A. More than one processes can be executed concurrently. B. Processing is done with a time constraint

C. Under Divisional Protocol D. None

C. A type of OS which do not interact with a computer directly.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam D.An OS which use multiple central processors to serve

316. which one of the following is an MS-DOS external

multiple real time applications.

command? A. COPY

B. FORMAT

309. What is Distributed Operating System (RTOS)? A. More than one processes can be executed concurrently.

C. DIR

D. None

B. Processing is done with a time constraint C. A type of OS which do not interact with a computer

317. In Windows ME, what does ME stands for? A. Micro-Expert B. Millennium-Edition

directly.

C. Multi-Expert

D.An OS which uses multiple central processors to serve multiple real time applications.

318.In OSI architecture, the routing algorithm is

310. Core of the OS which s the process by

performed by (A) Data Link Layer

dividing a path to peripheral devices? A. Kernel B. Shell

(C) Physical layer (E) None of these

C. Fork

D. None

(B) Network layer (D) Transport layer

D. None

311. The program which interprets commands given by

319. There are a total of……….actions button in PowerPoint.

the ? A. Kernel

A. 12 C. 18

C. Fork

B. Shell

B. 15 D. None

D. None 320. Attributes can be defined for

312. A system call of OS which is used to create a new

A. pages

B. entity

process is known as? A. Kernel B. Shell

C. macro

D. None

C. Fork

321. What is the default size of the data type in MS Access?

D. None

313. A process which is not executing due to any waiting event is called? A. Kernel

B. Shell

C. Deadlock

D. None

314. Which provides an interface between process & OS? A. Kernel B. System Calls C. Deadlock

A. 50 C. 70

B. 60 D. None

322.……. means that the data contained in a database is accurate & reliable A. Data redundancy C. Data consistency

B. Data integrity D. None

D. None 323. The smallest unit of information about a record is

315. Interface can be divided into two types. They

called a……

are A. Graphical Interface

A. cell C. record

B. Character Interface C.A.&B.

324. Which combines efficient implementation techniques

D. None

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B. field D. NonE.

that enable them to be used in extremely large database? A. Data Mining

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam B. Data Manipulation

331. A collection of related files is called………..

C. Data reliability D. NonE.

A. field C. database

325. A program that generally has more -friendly

332. A logical schema

interface than a DBMS is called a A. back end

A. is the entire database B. is a standard way of organizing information into

B. front end

accessible part

C. form D. NonE.

C.A.&B. D. NonE.

326. A collection of conceptual tools for describing data,

333. To locate a data item for storage is

relationships, semantics & constraints is referred as…. A. data model

A. field C. feed

B. record D. None.

B. fetch D. NonE.

B. ER model C. DBMS D. NonE.

334..Find out the perfect pair of input devices? A. keyboard, touch screen, mouse

327..Dr.EFCodd represented……. rules that a database

B. Mouse, Fax Machine, Light Pen C. Light Pen, Keyboard, Joysticks.

must obey if it has to be considered truly relational. A. 4 b B. 8

D.Keyboard, Mouse, Digital Camera C. None of thesE.

C. 12

D. NonE.

328.…….. is one reason for problems of data integrity A. Data availability constraints B. Data redundancy C. Data reliability D. NonE. 329. ………provides total solutions to reduce data redundancy, inconsistency, dependence & unauthorized access of data. A. Table B. Protection C. Data reliability D. None. 330…….. are distinct items that don’t have much meaning to you in a given answer A. Fields B. Data C. Queries

D. None.

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 335.Which one is true according to speed?

C. star

D. mesh

A. LAN>WAM>MAN B. WAN>MAN>LAN

343.Multiplexing involves…….path and…. channel

C. LAN>MAN>WAN D. MAN

A. single path & multiple channel B. Single path & single channel

E. None

C. multiple path & multiple channel D. mesh

336. An E-R diagram is a graphic method of presenting A. entity classes & their relationships B. primary keys & their relationships

344. P2P is a……application architecture A. distributed B. client/server

C. primary keys & their relationships to instances D. NonE.

C. 1-tier

D. None

337. An entity set that does not have sufficient attributes

345. In OSI architecture, the routing is performed by A. network layer

to form a primary key, is a…..

B. data link layer

A. primary entity set B. weak entity set

C. transport layer D. None

C. simple entity set D. NonE.

346. Which of the following is considered a broad band

338. A computer checks …….. of name &

communication channel? A. Coaxial Cable

for a match before granting access.

B. Fiber Optics Cable

A. website C. database

C. Microwave Circuits D. All of these

B. network D. None.

339. ….. is a primary key of one file that also appears in

347. How many bits are there in the Ethernet address?

another file? A. Physical key

B. Foreign key

A. 48 bits C. 16 bits

C. Logical key

D. None.

340. Key to represent relationship between tables is called A. Physical key C. Logical key

B. Foreign key D. NonE.

B. 64 bits D. None

348. Ethernet, token ring and token bus are types of A. LAN B. WAN C. MAN

D. None

341.In a relational database, a data structure that

349. Which of the following items is not used in LANs? A. Interface card B. cable

organizes the information about a single topic into rows &

C. computer

columns, is…. A. block

B. record

350. which is the name of the network topology in which

C. tuple

D. table

there are bidirectional links between each possible nodes? A. Mesh B. Ring

342. Hub is associated with…….. network A. bus B. ring

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C. Bus

D. Modem

D. None

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 351. An alternate name for the completely interconnected

C. Reach format

D. None

network topology is A.Mesh

B. Ring

361. Which stores information about the ’s web

C. Bus

D. None

activity? A. Spam

B. Cookie

352. Telnet is………based computer protocol A. sound B. image

C. Cache

D. None

C. text

362. Each IP packet must contain

D. None

353. through………an or another can

A. Source address C.A.&B.

B. destination D. None

address

access someone else’s computer remotely. A. Web server B. Web application

363. Vendor-created program modifications are called— —— A. patches

B. antiviruses

354. How many ways you can save a document?

C. holes

D. None

A. 5 C. 3

364. If your computer rebooting itself then it is likely that

C. telnet

D. None

B. 4 D. None

355. The maximum zoom % in MS Power Point is…….

A. It has a virus B. It does not have enough memory

A. 400 C. 200

C. There has been a power surge D. None

B. 100 D. None

356. In Excel, charts are created using which option? A. Pie Chart B. Chart Wizard

365. The …….. of a Threat measures its potential impact on a System

C.Bar Chart

A. vulnerabilities B. degree of harm

D. None

357. In order to include picture data type must be? A. OLE B. hyperlink C.A. or B.

C. susceptibility D. None

D. None

358. A…….. is the term used when a search engine

366. A digital signature is A. scanned signature

returns a web page that matches search criteria A. blog B. hit

B. encrypting information C. signature in binary form

C. link

D. None

D. None

359. Which is required to create an html document?

367. A firewall operated by

A. Internet C. Browser

A. the pre-purchase phase B. isolating intranet from extranet

B. text editor D. None

360. Which of the following will be used if a sender of email wants to bold, italics etc, the text message? A. Rich text B. Rich signature

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C. screening packets to/from the network & provide controllable filtering of network traffic. D. None

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 368. Which one of the following is a cryptographic protocol used to secure http concession? A. Transport Layer Security

376.In a worksheet lines between cells are called as____________.

B. Explicit Congestion Notification C. Resource Reservation Notification (RRN)

A.Cross lines

B.Gridlines

D. None

C.Parallel lines E.None of thesE.

D.Adjacent

369. Which of the following inputs a computer’s memory, but unlike a virus, it does not replicate itself? A. Trojan Horse B. Logic bomb C. Firewall

D. None

377.EDVAC stands for_____________. A.Electronic Disc Variable Automatic Computer B.Electronic Discrete Variable Automatically Computer C. Electronic Discrete Variable Automatic Computer

370. Which one of the following is a key function of firewall?

D. Electronic Discrete Versatile Automatic Computer

A. Monitoring

B. deleting

C. moving

D. None

378. Binary equivalent to 87 is: A.1010111

371. The load instruction is mostly used to designate a transfer from memory to a processor known as A. Program counter C. accumulator

B. instruction D. None

372. The most frequently used instructions of a computer program are likely to be fetched from A. cache C. main memory

B. cookie D. None

B.1101111 C.1011111 D.10111111 E. None of these 379. Stack is the ____________________structure. A.Last in first out (LIFO) B.First in First out (FIFO) C.First in Last out (FILO) D.First come First served (FCFS) E. None of these

373. Arithmetic Logic Unit (ALU) and control sections have special purpose locations called A. secondary memory C. accumulator

B. s D. None

374.Who was the Inventors of Computer Chip (IC) A.Jack Kilby C.Jack Kilby and Robert Noyce

B.Robert Noyce D.John McCarthy

E.Martin Cooper 375.Gigabyte represents approximately ______________ memory locations. A.one billion C.one trillion E.none of the above

B.one million D.two million

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 380. Which layer is reasonable for the interface? A.Physical Layer C.Data Link Layer

C.

B.Application Layer D.Network Layer

E.Session Layer 381.A __________ network has a central (hub) computer that is responsible for managing the network A.star

B.ring

C.Bus E.None of the above

D.Mesh 386. What will be the one’s complement of (10101)

382. IPv6 works on ________bit. A.32 bit C.16 bit

D.

B.64 bit D.128 bit

A.01010

B.11111

C.00010 E.10100

D.11000

E.256 bit

387. What will be the two’s complement of (10101) A.01010 B.11111

383..How many maximum columns insert in MS word

C.01011 E.10100

table? A.32 C.63 E.67

D.11000

388. Which of the following represent Associative Law? B.61 D.65

A.(A.B).C = A.(B.C) B.(A.B).C = A.C + A.B C.A.B=B.A D.A.(B.C) = A.B + A.C

384. AND gate output with three inputs, A, B, and C, is HIGH when ________.

E.None of the above

A. B.

A = 1, B = 1, C = 0 A = 0, B = 0, C = 0

389. How many Keywords available in ‘C’ Language?

C. D.

A = 1, B = 1, C = 1 A = 1, B = 0, C = 1

E.

A = 0, B = 1, C = 1

A.25 C.32

B.23 D.36

E.39 390. Result of this given the image is equal to ------

385. Which one of the following image represents a NOR gate? A.

B.

A.AND Gate

B.OR Gate

C.NOT Gate E.None of the above

D.NOR Gate

391. Convert (577)8 = (?) 16 A.17F B.16E C.17E

D.15D

E.16F 392. Convert (111111110010)2 = (?)16

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam A.

(EE2)16

B.

(FF2)16

396. Yahoo (www.yahoo.com) is a _________. A. Website for Consumers

C.

(2FE)16

B. Portal C. Organization that allocates web addresses

D.

(FD2)16

D. Super Computer E. None of these.

E.

None of these

397. Time during which a job is processed by the computer is___.

393. Convert (8B3F)16 = (?)2

A. Execution Time C. Real Time

B. Delay Time D. Waiting Time

A.

35647

B.

011010

C.

1011001111100011

D.

1000101100111111

A. Web Browser B. Graphing Package

E.

1001111110011000

C. News Reader D. Any person browsing the net

E. None of these 398. Internet Explorer is a _____.

E. None of these 394. Father of 'C' programming language_________. A. Dennis Ritchie

B. Prof Jhon Kemeny

C. Thomas Kurtz E. None

D. Bill Gates

399. 1st microprocessor in the world _______ . A. 8085 C. I-4004

B. 8086 D. 8286

E. None of these 395. Which of the following is not a method of accessing the web? A. modem

B. ISDN

400. Which memory is used to store the data untill the light is on __________?

C. DSL

D. U

A. RAM

B. ROM

C. PROM E. None of these

D. CACHE

E. None of these

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam

1 (C)

2 (A)

3E

4 (D)

5 (C)

6 (A)

7 (A)

8 (D)

9 (E)

10 (B)

11 (B)

12 (C)

13 (A)

14 (C)

15 (C)

16 (B)

17 (B)

18 (B)

19 (B)

20 (D)

21 (C)

22 (B)

23 (A)

24 (A)

25 (D)

26 (C)

27 (C)

28 (D)

29 (C)

30 E

31 (C)

32 (C)

33 (D)

34 (B)

35 (C)

36 (B)

37 (D)

38 (C)

39 (A)

40 (C)

41 (C)

42 (B)

43 (A)

44 (C)

45 (C)

46 (B)

47 (D)

48 (A)

49 (D)

50 (D)

51 (A)

52 (C)

53 (D)

54 (B)

55 (B)

56 (D)

57 (D)

58 (C)

59 (D)

60 (C)

61 (A)

62 (B)

63 ( C)

64 (A)

65 (B)

66 (A)

67 (D)

68 (C)

69 (B)

70 (D)

71 (C) 81 (E) 91 (A)

72 (A) 82 (D) 92 (B)

73 (A) 83 (A) 93 (B)

74 (C) 84 (C) 94 (C)

75 (A) 85 (A) 95 ( C)

76 (B) 86 (B) 96 (D)

77 (A) 87 (A) 97 (A)

78 (B) 88 (A) 98 (E)

79 (B) 89 (D) 99 (B)

80 (A) 90 (C) 100 (B)

101 (A) 111(B)

102 (C) 112 (C)

103 (C) 113 (A)

104 (B) 114 (C)

105 (A) 115 (A)

106 (B) 116 (B)

107 (B) 117 (A)

108 (A) 118 (C)

109 (C) 119 (C)

110 (B) 120 (A)

121 (C)

122 (A)

123 (C)

124 (C)

125 (D)

126 (D)

127 (A)

128 (C)

129 (C)

130 (A)

131 (C)

132 (B)

133 (C)

134 (C)

135 (D)

136 (A)

137 (A)

138 (D)

139 (B)

140 (A)

141 (D)

142 (B)

143 (A)

144 (D)

145 (D)

146 (B)

147 (D)

148 (C)

149 (D)

150 (A)

151 (A)

152 (A)

153 (B)

154 (D)

155 (D)

156 (C)

157 (A)

158 (D)

159 (C)

160 (C)

161 (D)

162 (C)

163 (C)

164 (D)

165 (A)

166 (B)

167 (D)

168 (D)

169 (C)

170 (C)

171 (C) 181 (B)

172 (A) 182 (A)

173 (D) 183 (D)

174 (C) 184 (B)

175 (A) 185 (A)

176 (B) 186 (D)

177 (C) 187 (B)

178 (A) 188 (C)

179 (A) 189 (A)

180 (B) 190 (B)

191 (B)

192 (C)

193 (C)

194 (B)

195 (B)

196 (A)

197 (D)

198 (C)

199 (D)

200 (B)

201 (C)

202 (A)

203 (C)

204 (C)

205 (A)

206 (A)

207 (A)

208 (C)

209 (B)

210 (A)

211 (C)

212 (B)

213 (A)

214 (C)

215 (B)

216 (B)

217 (C)

218 (A)

219 (D)

220 (A)

221 (A)

222 (A)

223 (A)

224 (A)

225 (B)

226 (B)

227 (B)

228 (A)

229 (C)

230 (C)

231 (A)

232 (A)

233 (A)

234 (D)

235 (A)

236 (B)

237 (A)

238 (A)

239 (B)

240 (B)

241 (B)

242 (B)

243 (B)

244 (A)

245 (B)

246 (A)

247 (A)

248 (B)

249 (B)

250 (B)

251 (B)

252 (B)

253 (C)

254 (C)

255 (C)

256 (B)

257 (C)

258 (C)

259 (C)

260 (B)

261 (B)

262 (A)

263 (B)

264 (B)

265 (B)

266 (B)

267 ( )

268 (A)

269 (B)

270 (B)

271 (B) 281 (A)

272 (B) 282 (B)

273 (B) 283 (A)

274 (B) 284 (A)

275 (B) 285 (A)

276 (C) 286 (C)

277 (C) 287 (A)

278 (B) 288 (A)

279 (A) 289 (B)

280 (C) 290 (B)

291 (A)

292 (C)

293 (B)

294 (C)

295 (A)

296 (A)

297 (C)

298 (A)

299 (B)

300 (B)

301 (C)

302 (B)

303 (C)

304 (B)

305 (C)

306 (C)

307 (B)

308 (C)

309 (D)

310 (A)

311 (B)

312 (C)

313 (C)

314 (B)

315 (C)

316 (B)

317 (B)

318 (B)

319 (A)

320 (B)

321 (A)

322 (B)

323 (B)

324 (A)

325 (C)

326 (A)

327 (C)

328 (A)

329 (B)

330 (B)

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Computer Capsule – IBPS PO, RRB & Clerk Mains Exam 331 (B) 341 (D)

332 (A) 342 (C)

333 (B) 343 (A)

334 (C) 344 (B)

335 (C) 345 (A)

336 (A) 346 (D)

337 (C) 347 (A)

338 (B) 348 (A)

339 (B) 349 (D)

340 (B) 350 (A)

351 (A)

352 (C)

353 (C)

354 (C)

355 (A)

356 (B)

357 (A)

358 (B)

359 (B)

360 (A)

361 (B)

362 (C)

363 (A)

364 (A)

365 (B)

366 (B)

367 (C)

368 (A)

369 (B)

370 (A)

371 (C)

372 (A)

373 (B)

374 (C)

375 (A)

376 (B)

377 (B)

378 (A)

379 (A)

380 (B)

381 (A)

382 (D)

383 (C)

384 (C)

385 (B)

386 (A)

387 (C)

388 (A)

389 (C)

390 (A)

391 (A)

392 (B)

393 (D)

394 (A)

395 (D)

396 (A)

397 (A)

398 (A)

399 (C)

400 (A)

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