laboursonline – MCQs, Mock Tests | UPSC,PCS,CDS,NDA Computer Awareness MCQ Competitive Exam

An area of a computer that temporarily holds data waiting to be processed is..........

1. CPU
2. Memory
3. Storage
4. File

✅ Correct Answer: 2

is the key to close a selected drop -down list; cancel a command and close a dialog box

1. TAB
2. SHIFT
3. ESC
4. F10

✅ Correct Answer: 3

is the key we use to run the selected command

1. SHIFT
2. TAB
3. ENTER
4. CTRL

✅ Correct Answer: 3

Is the functional key to display save-as box

1. F5
2. F6
3. F9
4. F12

✅ Correct Answer: 4

Data becomes ................ when it is presented in a format that people can understand and use

1. processed
2. graphs
3. information
4. presentation

✅ Correct Answer: 3

The term ............. designates equipment that might be added to a computer system to enhance its functionality.

1. digital device
2. system add-on
3. disk pack
4. peripheral device

✅ Correct Answer: 4

A ............ is a microprocessor -based computing device.

1. personal computer
2. mainframe
3. workstation
4. server

✅ Correct Answer: 1

RAM can be treated as the for the computer's processor

1. factory
2. operating room
3. waiting room
4. planning room

✅ Correct Answer: 3

Which of the following are the functions of a operating system

1. Allocates resources
2. Monitors Activities
3. Manages disks and files
4. All of the above

✅ Correct Answer: 4

To move a copy of file from one computer to another over a communication channel is called?

1. File transfer
2. File encryption
3. File modification
4. File copying

✅ Correct Answer: 1

The primary function of the ............ is to set up the hardware and load and start an operating system

1. System Programs
2. BIOS
3. CP
4. Memory

✅ Correct Answer: 2

What kind of memory is both static and non -volatile?

1. RAM
2. ROM
3. BIOS
4. CACHE

✅ Correct Answer: 2

is computer software designed to operate the computer hardware and to provide platform for running application software

1. Application software
2. System software
3. Software
4. Operating system

✅ Correct Answer: 2

The ......... is the amount of data that a storage device can move from the storage medium to the Computer per second

1. data migration rate
2. data digitizing rate
3. data transfer rate
4. data access rate

✅ Correct Answer: 3

A device, which is not connected to CPU, is called as .......

1. land-line device
2. On-line device
3. Off-line device
4. Device

✅ Correct Answer: 3

What is the other name for programmed chip?

1. RAM
2. ROM
3. LSIC
4. PROM

✅ Correct Answer: 3

On-line real time systems become popular in ........... generation

1. First Generation
2. Second Generation
3. Third Generation
4. Fourth Generation

✅ Correct Answer: 3

You use a(n) ....., such as a keyboard or mouse, to input information

1. output device
2. input device
3. storage device
4. processing device

✅ Correct Answer: 2

is the ability of a device to jump directly to the requested data

1. Sequential access
2. Random access
3. Quick access
4. All of the above

✅ Correct Answer: 2

provides process and memory management services that allow two or more tasks, jobs, or programs to run simultaneously

1. Multitasking
2. Multithreading
3. Multiprocessing
4. Multicomputing

✅ Correct Answer: 1

The task of performing operations like arithmetic and logical operations is called......

1. Processing
2. Storing
3. Editing
4. Sorting

✅ Correct Answer: 1

ALU and Control Unit jointly known as

1. RAM
2. ROM
3. CPU
4. PC

✅ Correct Answer: 3

RAM is an example of

1. Secondary memory
2. Primary memory
3. Main memory
4. Both (1) and (2)

✅ Correct Answer: 2

Magnetic disk is an example of

1. Secondary memory
2. Primary memory
3. Main memory
4. Both (1) and (2)

✅ Correct Answer: 1

Which one of the following is NOT a computer language

1. MS-Excel
2. BASIC
3. COBOL
4. C++

✅ Correct Answer: 1

RAM is also called as

1. Read / Write Memory
2. Long Memory
3. Long Memory
4. Primary Memory

✅ Correct Answer: 1

Store data or information temporarily and pass it on as directed by the control unit

1. Address
2. Register
3. Number
4. Memory

✅ Correct Answer: 2

Select the Odd one

1. Operating system
2. Interpreter
3. Compiler
4. Assembler

✅ Correct Answer: 1

A ............ is an additional set of commands that the computer displays after you make a selection from the main menu

1. dialog box
2. submenu
3. menu selection
4. All of the above

✅ Correct Answer: 1

COBOL is an acronym for.............

1. Common Business Oriented Language
2. Computer Business Oriented Language
3. Common Business Operated Language
4. Common Business Organized Language

✅ Correct Answer: 1

All of the following are examples of real security and privacy risks EXCEPT

1. hackers
2. Spam
3. Viruses
4. identity theft

✅ Correct Answer: 2

Which of the following is NOT one of the four major data processing functions of a computer?

1. gathering data
2. processing data into information
3. analyzing the data or information
4. storing the data or information

✅ Correct Answer: 3

All of the following are examples of storage devices EXCEPT

1. hard disk drives
2. printers
3. floppy disk drives
4. CD drives

✅ Correct Answer: 2

The CPU and memory are located on the

1. expansion board
2. motherboard
3. storage device
4. output device

✅ Correct Answer: 2

is the science that attempts to produce machines that display the same type of intelligence that humans do

1. Nanoscience
2. Nanotechnology
3. Simulation
4. Artificial intelligence (Al)

✅ Correct Answer: 4

Servers are computers that provide resources to other computers connected to a

1. networked
2. mainframe
3. supercomputer
4. client

✅ Correct Answer: 2

When creating a computer program, the ......... designs the structure of the program

1. . End user
2. System Analyst
3. Programmer
4. All of the above

✅ Correct Answer: 2

A computer program that converts an entire program into machine language at one time is called a/ an

1. Interpreter
2. simulator
3. characters
4. compiler

✅ Correct Answer: 3

Computers process data into information by working exclusively with

1. multimedia
2. word
3. numbers
4. characters

✅ Correct Answer: 3

The difference between people with access to computers and the Internet and those without this access is known as the

1. digital divide
2. Internet divide
3. Web divide
4. E-illiteracy

✅ Correct Answer: 1

Computers manipulate data in many ways, and this manipulation is called......

1. upgrading
2. processing
3. batching
4. utilizing

✅ Correct Answer: 2

The ability to recover and read deleted or damaged files from a criminal's computer is an example of a law enforcement speciality called

1. robotics
2. simulation
3. computer forensics
4. animation

✅ Correct Answer: 3

Where does most data go first with in a computer memory hierarchy ?

1. RAM
2. ROM
3. BIOS
4. CACHE

✅ Correct Answer: 1

The………….data mining technique derives rules from real-world case examples

1. Rule discover
2. Signal processing
3. Neural nets
4. Case-based reasoning

✅ Correct Answer: 3

…………….are used to identify a user who returns to a Website

1. Cookies
2. Plug-ins
3. Scripts
4. ASPs

✅ Correct Answer: 1

Codes consisting of lines of varying widths or lengths that are computer-readable are known as-

1. an ASCII code
2. a magnetic tape
3. an OCR scanner
4. a bar code

✅ Correct Answer: 4

Why is it unethical to share copyrighted files with your friends?

1. It is not unethical, because it is legal.
2. It is unethical because the files are being given for free.
3. Sharing copyrighted files without permission breaks copyright laws.
4. It is not unethical because the files are being given for free.

✅ Correct Answer: 3

Reusable optical storage will typically have the acronym-

1. CD
2. DVD
3. ROM
4. RW

✅ Correct Answer: 4

The most common type of storage devices are

1. Steel
2. optical
3. magnetic
4. flash

✅ Correct Answer: 3

A device that connects to a network without the use of cables is said to be

1. Distributed
2. free
3. centralized
4. none of these

✅ Correct Answer: 4

A person who used his or her expertise to gain access to other people's computers to get information illegally or do damage is a

1. Hacker
2. spammer
3. instant messenger
4. programmer

✅ Correct Answer: 1

To access properties of an object, the mouse technique to use is

1. Dragging
2. dropping
3. right-clicking
4. shift-clicking

✅ Correct Answer: 3

A DVD is an example of a (n

1. hard disk
2. optical disc
3. output device
4. solid-state storage device

✅ Correct Answer: 2

The process of transferring files from a computer on the Internet to your computer is called

1. Downloading
2. uploading
3. FTP
4. JPEG

✅ Correct Answer: 1

is the process of dividing the disk into tracks and sectors

1. Tracking
2. Formatting
3. Crashing
4. Allotting

✅ Correct Answer: 2

Help Menu is available at which button?

1. End
2. Start
3. Turnoff
4. Restart

✅ Correct Answer: 2

The technology that stores only the essential instructions on a microprocessor chip and thus enhances its speed is referred to as

1. CISC
2. RISC
3. CD-ROM
4. Wi-Fi

✅ Correct Answer: 2

Which is not a basic function of a computer?

1. Store data
2. Accept input
3. Process data
4. Copy text

✅ Correct Answer: 4

ASCII is a coding system that provides

1. 256 different characters
2. 512 different characters
3. 1024 different characters
4. 128 different characters

✅ Correct Answer: 3

Which part of the computer is directly involved in executing the instructions of the computer program?

1. The scanner
2. The main storage
3. The secondary storage
4. The processor

✅ Correct Answer: 4

When a computer is switched on, the booting process performs

1. Integrity Test
2. Power-On Self-Test
3. Correct Functioning Test
4. Reliability Test

✅ Correct Answer: 2

A computer system that is old and perhaps not satisfactory is referred to as a(n)

1. Ancient system
2. Historical system
3. Age old system
4. Legacy system

✅ Correct Answer: 4

Which of the following is not a binary number?

1. 1
2. 101
3. 202
4. 110

✅ Correct Answer: 3

Which of the following does not store data permanently?

1. ROM
2. RAM
3. Floppy Disk
4. Hard Disk

✅ Correct Answer: 2

Which of the following is the smallest storage?

1. Megabyte
2. Gigabyte
3. Terabyte
4. None of these

✅ Correct Answer: 4

Which of the following contains permanent data and gets updated during the processing of transactions?

1. Operating System File
2. Transaction file
3. Software File
4. Master file

✅ Correct Answer: 4

Which of the following helps to protect floppy disks from data getting accidentally erased?

1. Access notch
2. Write-protect notch
3. Entry notch
4. Input notch

✅ Correct Answer: 2

A modem is connected to

1. a telephone line
2. a keyboard
3. a printer
4. a monitor

✅ Correct Answer: 1

Large transaction processing systems in automated organisations use

1. Online processing
2. Batch Processing
3. Once-a-day Processing
4. End-of-day processing

✅ Correct Answer: 2

In a computer, most processing takes place in

1. Memory
2. RAM
3. motherboard
4. CPU

✅ Correct Answer: 4

Which of the following is not a storage medium?

1. Hard disk
2. Flash drive
3. DVD
4. scanner

✅ Correct Answer: 4

The computer abbreviation KB usually means

1. Key Block
2. Kernel Boot
3. Kilo
4. Kit Bit

✅ Correct Answer: 3

The typical computer criminal is a(n):

1. Young hacker
2. Trusted employee with no criminal record
3. Trusted employee with a long, but unknown criminal record.
4. Overseas young cracker.

✅ Correct Answer: 2

The common name for the crime of stealing passwords is:

1. Jacking
2. Identity theft
3. Spoofing
4. Hacking

✅ Correct Answer: 3

Collecting personal information and effectively posing as another individual is known as the crime of

1. Spoofing
2. Identity theft
3. Spoofing
4. Hacking

✅ Correct Answer: 2

Malicious software is known as:

1. Badware
2. Malware
3. Maliciousware
4. Illegalware

✅ Correct Answer: 2

A program that performs a useful task while simultaneously allowing destructive acts is a

1. Worm
2. Trojan horse
3. Virus
4. Macro Virus

✅ Correct Answer: 2

An intentionally disruptive program that spreads from program to program or from disk to disk is known as a:

1. Trojan horse
2. Virus
3. Time bomb
4. Time-related bomb sequence

✅ Correct Answer: 2

In 1999, the Melissa virus was a widely publicised:

1. E-mail virus
2. Macro virus
3. Trojan horse
4. Time bomb.

✅ Correct Answer: 1

What type of virus uses computer hosts to reproduce itself?

1. Time bomb
2. Worm
3. Melissa virus
4. Macro virus

✅ Correct Answer: 2

The thing that eventually terminates a worm virus is a lack of:

1. Memory or disk space
2. Time
3. CD drives space
4. CD-RW

✅ Correct Answer: 1

When a logic bomb is activated by a time-related event, it is known as a:

1. Time-related bomb sequence
2. Virus.
3. Time bomb
4. Trojan horse

✅ Correct Answer: 3

A logic bomb that was created to erupt on Michelangelo‘s birthday is an example of a

1. Time-related bomb sequence
2. Virus
3. Time bomb
4. Trojan horse

✅ Correct Answer: 3

What is the name of an application program that gathers user information and sends it to someone through the Internet?

1. A virus
2. Spybot
3. Logic bomb
4. Security patch

✅ Correct Answer: 2

------ is the measurement of things such as fingerprints and retinal scans used for security access

1. Biometrics
2. Bio measurement
3. Computer security
4. Smart weapon machinery

✅ Correct Answer: 1

What is the most common tool used to restrict access to a computer system?

1. Hacker-proof program
2. Passwords
3. Computer keys
4. Access-control software

✅ Correct Answer: 2

Hardware or software designed to guard against unauthorized access to a computer network is known as a(n):

1. Hacker-proof program
2. Firewall
3. Hacker-resistant server
4. Encryption safe wall.

✅ Correct Answer: 2

The scrambling of code is known as:

1. Encryption
2. a firewall
3. Scrambling
4. Password proofing

✅ Correct Answer: 1

To prevent the loss of data during power failures, use a(n):

1. Encryption program
2. Surge protector
3. Firewall
4. UPS

✅ Correct Answer: 4

------Is defined as any crime completed through the use of computer technology

1. Computer forensics
2. Computer crime
3. Hacking
4. Cracking

✅ Correct Answer: 2

------ refers to electronic trespassing or criminal hacking

1. Cracking
2. Switching device of fifth generation computer is-
3. Spoofing
4. Smarming

✅ Correct Answer: 1

The first electronic computer was developed by

1. J.V. Attansoff
2. Bill Gates
3. Simur Cray
4. Winton Serf

✅ Correct Answer: 1

Snowbol is an/a---------

1. Operating system
2. HLL
3. Software
4. Search engine

✅ Correct Answer: 2

Switching device of fifth generation computer is-

1. Vacuum tubes
2. Transistors
3. IC
4. VLSI

✅ Correct Answer: 4

---------- computers operates essentially by counting

1. Portable computer
2. Hybrid computer
3. Analog computer
4. Digital computer

✅ Correct Answer: 4

---------- computer is small general purpose micro computer, but larger than portable computer

1. Hybrid
2. Digital
3. Desktop
4. Laptop

✅ Correct Answer: 3

Cathode Ray Tube is a form of.......

1. Keyboard
2. Mouse
3. Monitor
4. Mother board

✅ Correct Answer: 3

Trackball is a...........

1. Input device
2. Output device
3. Programming language
4. Software

✅ Correct Answer: 1

computer is a medium sized computer

1. Micro
2. Mainframe
3. Super
4. Mini

✅ Correct Answer: 4

computer are of large size

1. Micro
2. Mainframe
3. Super
4. Mini

✅ Correct Answer: 2

Note book, laptop,palm,hand-held computers are coming under the category of......... computer

1. Digital computer
2. Mainframe computer
3. Portable computer
4. Hybrid computer

✅ Correct Answer: 3

Light pen and joystick are............

1. Algorithm
2. Input devices
3. Output devices
4. Portals

✅ Correct Answer: 2

Touch Screen is............

1. Input device
2. Output device
3. Both a & b above
4. None of these

✅ Correct Answer: 3

printer is the cheapest in terms of price and operating cost

1. Inkjet
2. Laser
3. Thermal
4. Dot matrix

✅ Correct Answer: 4

printer is a non-impact printer and is quite in working

1. Inkjet
2. Laser
3. Thermal
4. Dot matrix

✅ Correct Answer: 1

are high-end printers

1. Inkjet
2. Laser
3. Thermal
4. Dot matrix

✅ Correct Answer: 2

are used for plotting graphs and design on papers

1. Trackball
2. Joystick
3. Light pen
4. Plotters

✅ Correct Answer: 4

Daisy wheel, Drum, chain etc are the .............

1. Flow chart
2. Mouse School of Distance Education
3. Key board
4. Printers

✅ Correct Answer: 4

are specific to users’ needs

1. System software
2. Application software
3. Assemblers
4. Compilers

✅ Correct Answer: 2

Joshy, Perfumes are examples of.............

1. Operating system
2. Computer languages
3. Computer viruses
4. Web portals

✅ Correct Answer: 3

Which of the following is/ are operating systems

1. Windows
2. Unix
3. OS/2
4. All of these

✅ Correct Answer: 4

MAN stands for

1. Maximum Area Network
2. Minimum Area Network
3. Maximum Area Network
4. Metropolitan Area Network

✅ Correct Answer: 4

Which of the following is a network topology

1. LAN
2. WAN
3. MAN
4. BUS

✅ Correct Answer: 4

Which of the following is a type of network

1. Ring
2. Bus
3. Star
4. PAN

✅ Correct Answer: 4

VOIP stands for.........

1. Voice over IP
2. Video over IP
3. Viruses over IP
4. Virtual over IP

✅ Correct Answer: 1

The first web browser is

1. Mosaic
2. Netscape
3. Internet explorer
4. Collabra

✅ Correct Answer: 1

LAN stands for..............

1. Limited Area Network
2. Logical Area Network
3. Local Area Network
4. Large Area Network

✅ Correct Answer: 3

are set of rules and procedures to control the data transmission over the internet

1. IP address
2. Domains
3. Protocol
4. Gateway

✅ Correct Answer: 3

NOS stands for

1. Node operating system
2. Non-open software
3. Network Operating system
4. Non-operating software

✅ Correct Answer: 3

are system software to facilitate editing of text and data

1. MS Word
2. Editors
3. PowerPoint
4. MS publisher

✅ Correct Answer: 2

Computers, combine both measuring and counting, are called

1. Analog
2. Digital
3. Hybrid
4. All of these

✅ Correct Answer: 3

In world today, most of the computers are

1. Digital
2. Hybrid
3. Analog
4. Complex

✅ Correct Answer: 1

Physical structure of computer is called

1. Software
2. Hardware
3. Human ware
4. All of these

✅ Correct Answer: 2

In which type of computer, data are represented as discrete signals.

1. Analog computer
2. Digital computer
3. both
4. Hybrid Computer

✅ Correct Answer: 2

Which of the following is available in the form of a PC now?

1. Mainframe
2. Microcomputer
3. Minicomputer
4. Both (B) & (C)

✅ Correct Answer: 2

UPSC,PCS,CDS,NDA MCQ Quiz Hub

Computer Awareness MCQ Competitive Exam - Computer