Computer MCQs

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81. A primary key that consists of more than one attribute is called a
(A) Foreign key
(B) Composite key
(C) Multivalued key
(D) Global key

82. An attribute in database is also known as
(A) Tuple
(B) Relation
(C) Row
(D) Field

83. C language was developed by
(A) Van Neumann
(B) Dennis Ritchie
(C) Charles Babbage
(D) John Backus

84. A space in computer’s memory set aside for some data that can be changed is called
(A) Variable
(B) Constant
(C) Integer
(D) Floating Point

85. Which of the following components is used to convert first .c to first .exe?
(A) Compiler and header
(B) Header and linker
(C) Compiler and linker
(D) Compiler only

86. Which of the database objects allows to extract specific information from tables?
(A) Queries
(B) Forms
(C) Reports
(D) Records

87. The instructions that are given to the compiler before the beginning of actual program are:
(A) C statements
(B) Preprocessor directive
(C) Linking instructions
(D) C instructions

88. Which key combination is used to run C program:
(A) Alt+F9
(B) Ctrl+S
(C) Alt+F5
(D) Ctrl+F9

89. Different attributes in two different tables having same name are referred to as
(A) Acronym
(B) Synonym
(C) Homonym
(D) Mutually exclusive

90. SQL is a/an
(A) Unstructured language
(B) Structured language
(C) Object oriented language
(D) Software

ANSWERS: COMPUTER MCQS
81. B
82. D
83. B
84. A
85. C
86. A
87. B
88. D
89. C
90. B

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Computer Quizzes

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71. The software used for workgroup computing is called
(A) Shareware
(B) Freeware
(C) Groupware
(D) Both A and B

72. Which of the following standards were developed without any formal planning?
(A) De Facto
(B) De Jure
(C) ISO
(D) Both A and B

73. Which of the following is LAN protocol?
(A) Ethernet
(B) ARCnet
(C) Token Ring
(D) All

74. Which one is the Bottom-most layer of OSI model?
(A) Data link
(B) Physical
(C) Network
(D) Transport

75. Data is transmitted block-by-block in ___________ transmission.
(A) Digital
(B) Analog
(C) Synchronous
(D) Asynchronous

76. An important property of fiber optic is
(A) Refraction
(B) Reflection
(C) Interface
(D) None Of These

77. The process to convert analog signals into digital signals is called
(A) Modulation
(B) Demodulation
(C) Digitization
(D) Conversion

78. Which of the following memories can be re-written by using electrical devices?
(A) PROM
(B) ROM
(C) EEPROM
(D) EPROM

79. ___________ virus is a polymorphic virus. Polymorphic means “changes nature with passage of time”.
(A) Redlof
(B) Torjan Horse
(C) Chernobal
(D) Logic Bomb

80. Which of the following protocols is used by World Wide Web(www)?
(A) TCP/IP
(B) Ethernet
(C) FTP
(D) HTTP

ANSWERS: COMPUTER QUIZZES 
71. C
72. A
73. D
74. B
75. C
76. A
77. B
78. C
79. A
80. D

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Computer Quiz

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61. The most widely used code for representing characters in computers is
(A) ASCII
(B) BCD
(C) EBCDIC
(D) None Of These

62. The type of reader commonly used to read bank cheques is
(A) OPtical-mark reader
(B) Magnetic-ink reader
(C) Bar-code reader
(D) None Of These

63. Which of the following devices stores instructions that help the computer startup?
(A) Keyboard
(B) RAM
(C) ROM
(D) Hard disk

64. The computer can move data and instructions between storage and memory as needed, in a process called
(A) Volatility
(B) Swapping
(C) Pipelining
(D) Exchanging

65. When you press a key, which device notifies the system software?
(A) Keyboard
(B) Keyboard Controller
(C) Keyboard Buffer
(D) Keyboard Handler

66. DOS was introduced by
(A) IBM
(B) Xerox
(C) Microsoft
(D) Bell labs

67. Which of the following operating system is based on open-source software?
(A) UNIX
(B) Windows 2000
(C) Windows NT
(D) Linux

68. The amount of time taken by a device to begin reading data is called
(A) Seek time
(B) Read time
(C) Access time
(D) Write time

69. The RAID technology that contributes to fault tolerance is called
(A) Disk mirroring
(B) Tolerant computing
(C) Data striping
(D) None Of These

70. MAN stands for?
(A) Metropolitan Arranged Network
(B) Marked Area Network
(C) Manufactured Arrangements of Networks
(D) Metropolitan Area Network

ANSWERS: COMPUTER QUIZ
61. A
62. B
63. C
64. B
65. B
66. A
67. D
68. C
69. A
70. D

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Computer Science MCQs

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51. Which technology is used in compact disks?
(A) Mechanical
(B) Electrical
(C) Electro Magnetic
(D) Laser

52. Operating system, editors and debuggers come under?
(A) System software
(B) Application software
(C) Utilities
(D) None Of These

53. Which one is the Low-Level language?
(A) Visual Basics
(B) Java
(C) Assembly
(D) C++

54. A modulator is used to convert:
(A) Digital signals into analog signals
(B) Analog signals into digital signals
(C) Both A and B
(D) None Of These

55. Which one is a Dot Matrix printer?
(A) Laser Printer
(B) Inkjet Printer
(C) Impact Printer
(D) Drum Printer

56. CRT stands for?
(A) Cathode Rays Tube
(B) Clarity Rays Tube
(C) Crystal Rays Tube
(D) None Of These

57. A computer program that translates one statement of program instructions at a time into machine language is called
(A) CPU
(B) Interpreter
(C) Compiler
(D) Simulator

58. NTFS stands for?
(A) New Trend File Saving
(B) Network File Saving
(C) New Technology File System
(D) None Of These

59. In MS Windows key F1 is mostly used for
(A) Help
(B) Exit
(C) Save
(D) Refresh

60. 1 Gigabyte is equal to
(A) 1024 bits
(B) 1024 bytes
(C) 1024 kilobytes
(D) 1024 megabytes

ANSWERS: COMPUTER SCIENCE MCQS
51. D
52. A
53. C
54. A
55. C
56. A
57. B
58. C
59. A
60. D

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Computer Science Quizzes

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41. Analog signal is measured in:
(A) Volt
(B) Hertz
(C) Digits
(D) WATTS

42. _________ uses liquid crystal between the glass plates.
(A) ELD
(B) LCD
(C) CRT
(D) None of These

43. Open System Interconnection(OSI) model consists of _________ layers.
(A) Eight
(B) Six
(C) Seven
(D) Five

44. Which of the following coding schemes uses 4-bit code?
(A) Unicode
(B) ASCII
(C) EBCDIC
(D) BCD

45. Which of the following communication medium requires “line-of-sight”?
(A) Microwave
(B) Fiber-Optic cable
(C) Twisted-Pair cable
(D) Coaxial cable

46. _________ is a collection of system programs that controls and co-ordinates the overall operations of a computer system.
(A) System software
(B) Operating system
(C) Utility program
(D) Device driver

47. The translated program into machine code is called _________.
(A) Source program
(B) Object program
(C) System program
(D) None Of These

48. FormatC is an example of virus _________.
(A) Chernobal
(B) Logic Bomb
(C) Boot Sector
(D) Torjan Horse

49. What type of operating system MS-DOS is?
(A) Command Line Interface
(B) Graphical User Interface
(C) Multitasking
(D) Menu Driven Interface

50. Which of the following keyboard shortcuts is used to change the case?
(A) Ctrl+F3
(B) Alt+F3
(C) Shift+F3
(D) Ctrl+Shift+F3

ANSWERS: COMPUTER SCIENCE QUIZZES
41. A
42. B
43. C
44. D
45. A
46. B
47. B
48. D
49. A
50. C

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Computer Science Quiz

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31. MICR stands for?
(A) Magic In Character Redo
(B) Magnetic Ink Character Recorder
(C) Magnetic Ink Character Reader
(D) None Of These

32. __________ is used to control all the parts of a manufacturing process.
(A) ATM
(B) CAM
(C) CAD
(D) MICR

33. CPU consists of the following parts:
(A) Control unit and ALU
(B) CU and Main memory
(C) Main memory and ALU
(D) Operating system and Main memory

34. MHz stands for?
(A) Millihertz
(B) Microhertz
(C) Megahertz
(D) None Of These

35. DRAM stands for?
(A) Digital Random Access Memory
(B) Dynamic Random Access Memory
(C) Digital Read Access Memory
(D) Dynamic Read Access Memory

36. The dots that compose the image of a digital photograph are called __________.
(A) Points
(B) Resolution Points
(C) Digital Points
(D) Pixels

37. A type of reader commonly used to read UPC code is __________.
(A) Bar-code reader
(B) Optical-mark reader
(C) Magnetic-ink reader
(D) Both A and C

38. Caps Lock is a:
(A) Window key
(B) Modifier key
(C) Toggle key
(D) Cursor control key

39. GPS stands for?
(A) Global Pointing System
(B) Global Positioning System
(C) Google Positioning System
(D) None Of These

40. Internet surfing is an example of:
(A) Half duplex
(B) Simplex
(C) Full duplex
(D) None Of These

ANSWERS: COMPUTER SCIENCE QUIZ
31. C
32. B
33. A
34. C
35. B
36. D
37. A
38. C
39. B
40. A

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Computer Science Quizzes

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21. Which register stores the result of ALU operations?
(A) Data Register
(B) Instruction Register
(C) Data Address Register
(D) Accumulator Register

22. A collection of rules for writing programs in a programming language is known as
(A) Syntax
(B) Program logic
(C) Program Standards
(D) None Of These

23. Which one connects two similar network segments?
(A) Router
(B) Bridge
(C) Gateway
(D) Node

24. Which of the following device uses the parallel transmission?
(A) Mouse
(B) Keyboard
(C) Printer
(D) Light Pen

25. What is a diagrammatic way of representing the relationship between the entities in a database?
(A) Flowchart
(B) ERD
(C) DFD
(D) Algorithm

26. Which transmission allows data to travel in both directions but only one direction at a time?
(A) Simplex
(B) Full duplex
(C) Half duplex
(D) Reverse

27. Another name for free software is?
(A) Encrypated Software
(B) Copy Protected Software
(C) Shareware
(D) Public Domain Software

28. DPI stands for?
(A) Dot Per Inch
(B) Decimal Per Inch
(C) Digit Per Inch
(D) Data Per Inch

29. A small high speed memory insidse CPU is
(A) RAM
(B) ROM
(C) Cache
(D) Register

30. ________ are used to evaluate compound conditions.
(A) Arithmetic Operators
(B) Logical Operators
(C) Relational Operators
(D) Assignment Operators

ANSWERS: COMPUTER SCIENCE QUIZZES
21. D
22. A
23. B
24. C
25. B
26. C
27. D
28. A
29. D
30. B

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Computer Science Quiz

Computer Science multiple choice questions (MCQs) Page-2. Find answers to the questions at the bottom of the page.

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11. IDE stands for?
(A) Integrated Dual Environment
(B) Inter Development Environment
(C) Integrated Development Environment
(D) Inter Dual Environment

12. A language that is closed to human language is called
(A) Low-Level language
(B) High-Level language
(C) Programming language
(D) Machine language

13. CBT stands for?
(A) Computer Based Training
(B) Computer Based Trading
(C) Computer Based Technology
(D) None Of These

14. A virus that replicates itself is called
(A) Bug
(B) Worm
(C) Bomb
(D) Hoax

15. The tool used to find a similar word in a document is called
(A) Finder
(B) Thesaurus
(C) Dictionary
(D) Find and Replace

16. Which of the following components of physical database design refer to the correctness and consistency of data?
(A) Indexes
(B) Integrity constraints
(C) File organization
(D) Data Distribution strategy

17. conio.h stands for?
(A) character input output
(B) console input output
(C) common input output
(D) complex input output

18. Duplication of data in multiple files is called
(A) Data Redundancy
(B) Data Dependence
(C) Data Inconsistency
(D) None Of These

19. A relation that contains minimal redundancy and allows easy use is called
(A) Clean
(B) Simple
(C) Complex
(D) Well-Structured

20. SQL stands for?
(A) Structured Query Language
(B) Sequential Query Language
(C) Simple Query Language
(D) None Of These

ANSWERS: COMPUTER SCIENCE QUIZ
11. C
12. B
13. A
14. B
15. B
16. C
17. B
18. A
19. D
20. A

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