Computer Science Questions & Answers, Computer Science MCQs, Latest MCQS for PPSC, FPSC, NTS, ETEA and Others MCQs

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1. The major language of World Wide Web is
(A) Java
(B) ASP.NET
(C) PHP
(D) HTML

2. HTML is an abbreviation for?
(A) Hyper Text Markup Language
(B) HiTech Markup Language
(C) HyperText Meaningful Language
(D) HiTech Meaningful Language

3. ___________ is a device from where the information is sent.
(A) Transmitter
(B Modulation
(C) Simulation
(D) Spreadsheet

4. __________ is a mathematical model of a real system in the form of a computer program.
(A) Spreadshee
(B) Modulation
(C) Transmitter
(D) Simulation

5. LAN is an abbreviation for?
(A) Large Area Network
(B) Local Area Network
(C) Large Access Network
(D) Local Access Network

6. In peer-to-peer networking,
(A) every computer is capable of playing the role of server
(B) every computer is capable of playing the role of client, server or both at the same time
(C) there is only one server and many clients
(D) there is only one client and many servers

7. URL is an abbreviation for?
(A) Universal Resource Location
(B) Uniform Resource Location
(C) Universal Resource Locator
(D) Uniform Resource Locator

8. The network in which we connect each node to the network along a single piece of network cable is called
(A) Bus Network Topology
(B) Ring Network Topology
(C) Star Network Topology
(D) None of these

9.  The network in which we connect each network node to a central device (hub) is called
(A) Ring Network Topology
(B) Bus Network Topology
(C) Star Network Topology
(D) None of these

10. FTP is an abbreviation for?
(A) File Transfer Protocol
(B) File Transfer Possibility
(C) File Transfer Position
(D) File Transfer Protection

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

56. CRT stands for?
(A) Cathode Rays Tube
(B) Crystal Rays Tube
(C) Clarity 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) Compiler
(B) Simulator
(C) CPU
(D) Interpreter

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

91. The loop which never ends is called:
(A) Nested loop
(B) Continuous loop
(C) Running loop
(D) Infinite loop

92. Another term for a conditional operator is:
(A) Binary
(B) Ternary
(C) Selective
(D) Iteration

93. The total number of keywords in C are:
(A) 32
(B) 42
(C) 60
(D) 50

94. What does CIM stand for?
(A) Computer Integrated Manufacturing
(B) Computer Intel Marketing
(C) Computer International Management
(D) Copy In Memory

95. Which register normally functions as a 16-bit counter that controls the sequence in which the instructions are fetched from memory?
(A) DR
(B) IR
(C) PC
(D) DAR

96. Access time for most of memories is measured in:
(A) Nanoseconds
(B) Milliseconds
(C) Microseconds
(D) Megahertz

97. A database consists of various components called:
(A) Entities
(B) Objects
(C) Tools
(D) Propertie

98. Which of the following terms is related to the features of cascading deletion?
(A) Data integrity
(B) Indexing
(C) Referential integrity
(D) Data redundancy

99. ATM stands for?
(A) Analog Teller Machine
(B) Automatic Teller Machine
(C) Automatic Talking Machine
(D) Automatic Ticketing Machine

100. Who is known as “Father of Computer Science”?
(A) Blaise Pascal
(B) Howard Aiken
(C) Dr.Herman Hollerith
(D) Charles Babbage

Computer Science Questions & Answers, Computer Science MCQs, Latest MCQS for PPSC, FPSC, NTS, ETEA and Others MCQs