Very Important Computer MCQ For Computer Operator/JOA IT/Computer Programmer Exam
1. ‘Abacus’ was developed by
(A) China
(B) India
(C) America
(D) U.K.
2. The first mass-produced mechanical calculating device was
(A) Arithmometer
(B) Pascaline
(C) Punch card
(D) MARK-I
3. The first computer was programmed using
(A) Assembly language
(B) Machine language
(C) Source code
(D) Object code
4. The IC chip used in computer is generally made up of
(A) Silicon
(B) Chromium
(C) Gold
(D) Lead
5. In which generation of computer did multi-programming start ?
(A) First generation
(B) Second generation
(C) Third generation
(D) Fourth generation
6. The world’s first Microprocessor was introduced in
(A) 1961
(B) 1965
(C) 1969
(D) 1971
7. A computer intensive problem runs on a
(A) Server
(B) Mainframe
(C) Super Computer
(D) Super PC
8. An example of an embedded system is
(A) Scientific calculator
(B) a Machine tool
(C) a CD-ROM
(D) a Magnetic tape
9. The use of computer for business applications is attractive because of its
(A) accuracy
(B) reliability
(C) speed
(D) All of these
10. The first computer architecture was introduced in
(A) 1970
(B) 1971
(C) 1972
(D) 1973
11. The main circuit-board of the system unit is the
(A) Computer program
(B) Control unit
(C) Motherboard
(D) RAM
12. The clock rate of a processor is measured in
(A) milliseconds
(B) microhertz
(C) nanoseconds
(D) megahertz or gigahertz
13. Fan Housing is used for the purpose of
(A) cooling the CPU
(B) cooling of the monitor
(C) cooling the UPS
(D) cooling the software
14. Pipeline processing implement
(A) fetch instruction
(B) decode instruction
(C) execute instruction
(D) All of these
15. The two phases of executing an instruction are
(A) instruction decoding and storage
(B) instruction fetching and instruction execution
(C) instruction execution and storage
(D) None of these
16. The microprocessor is made up of millions of
(A) registers
(B) transistors
(C) microchips
(D) program counter
17. Optical mouse was introduced by
(A) Microsoft
(B) IBM
(C) Dell
(D) Intel
18. Light pen is mainly used for
(A) calculation
(B) writing
(C) designing
(D) programming
19. Joystick most widely used in
(A) flight simulators
(B) CAD/CAM systems
(C) controlling industrial robots
(D) All of these
20. Which is widely used in academic testing ?
(A) MICR
(B) POS
(C) OCR
(D) OMR
21. What is MP3 ?
(A) A printer
(B) A mouse
(C) A sound format
(D) A scanner
22. Which of the following is inkless printer ?
(A) Inkjet printer
(B) Laser printer
(C) Thermal printer
(D) Plotter printer
23. Which is a graphics output device that plots on paper attached to a flat surface ?
(A) Magnetic ink character
(B) Laser printer
(C) Line printer
(D) Flat bed plotter
24. Parallel port can connect
(A) Printers
(B) Scanners
(C) Mouse
(D) Both (A) and (B)
25. The smallest unit of storage is
(A) Byte
(B) Bit
(C) Bug
(D) Nibble
26. How many types of memory does a computer have ?
(A) Four
(B) Eight
(C) One
(D) Two
27. Programs stored in ROM is called
(A) Hardware
(B) Firmware
(C) Software
(D) None of these
28. Which of the following has the fastest access time ?
(A) Semiconductor memory
(B) Magnetic disk
(C) Magnetic tapes
(D) Compact disk
29. CD-ROM drive is used
(A) to play music
(B) to play compact disc
(C) to install software
(D) to control virus
30. What is the position value of 2 ?
(A) 100
(B) 101
(C) 102
(D) 103
31. Binary Coded Decimal or BCD is also known as
(A) 2841
(B) 4821
(C) 4281
(D) 8421
32. The most widely used binary code for micro computers is
(A) ASCII
(B) EBCDIC
(C) Unicode
(D) CISC
33. Programs designed to perform specific tasks related to managing computer
resources are called
(A) Operating system
(B) Helper software
(C) System software
(D) Application software
34. To protect yourself from computer hacker, you should turn on a
(A) Script
(B) Firewall
(C) Google chrome
(D) AUP
35. We can enter and edit the text efficiently using
(A) Spreadsheet
(B) Typewriter
(C) Word processing program
(D) Desktop publishing program
36. The lowest form of computer language is called
(A) BASIC
(B) FORTRAN
(C) Machine Language
(D) COBOL
37. High level language is also called
(A) Problem Oriented Language
(B) Business Oriented Language
(C) Mathematically Oriented Language
(D) All of these
38. The most widely used complied computer programming language is
(A) BASIC
(B) COBOL
(C) FORTRAN
(D) PASCAL
39. ‘FORTRAN’ was introduced in the year
(A) 1942
(B) 1948
(C) 1957
(D) 1970
40. Java was introduced by
(A) Sun Microsystem
(B) IBM
(C) Intel
(D) Microsoft
41. A program written in high level language is referred to as
(A) Source code
(B) Object code
(C) Machine code
(D) Assembly code
42. The translator program used in assembly language is called
(A) Compiler
(B) Assembler
(C) Interpreter
(D) Translator
43. A program that convert a high level language program to a set of
instructions that can run on a computer is called
(A) Compiler
(B) Debugger
(C) Editor
(D) None of these
44. The compiled and the linked program are called the
(A) Source code
(B) Executable code
(C) Pseudo code
(D) Machine code
45. A system program that combines the separately compiled modules of a
program into a form of
(A) Assembler
(B) Linking loader
(C) Cross compiler
(D) Load and go
46. The primary job of the operating system of a computer is to
(A) command resources
(B) manage resources
(C) provide utilities
(D) provide connection
47. A program in execution is called
(A) Process
(B) Instruction
(C) Procedure
(D) Function
48. Remote computing services involve the use of time sharing and
(A) multi-processing
(B) interactive processing
(C) batch processing
(D) real time processing
49. Shell is the exclusive feature of
(A) Unix
(B) DOS
(C) System software
(D) Application software
50. Basic language of ‘Unix’ is
(A) COBOL
(B) BASIC
(C) Assembly
(D) JAVA
51. Which type of files cannot be navigated using clip Art browser ?
(A) AVI
(B) BMP
(C) WAV
(D) MP3
52. ‘Comic Sans MS’ is an example of
(A) font type
(B) font face
(C) font layout
(D) font structure
53. Which of the following is a popular DOS based spreadsheet package ?
(A) Excel
(B) Word
(C) Smart cell
(D) Lotus 1-2-3
54. Excel documents are stored as files called
(A) Workforce
(B) Worksheets
(C) Worktables
(D) Workgroups
55. Which of the following is not a valid data type in MS-Excel ?
(A) Number
(B) Text
(C) Character
(D) Date/Time
56. When you enter text in a cell in MS-Excel, it also appears in the
(A) status bar
(B) formula bar
(C) row heading
(D) name box
57. For opening and closing of the files in MS-Excel, you can use which bar ?
(A) Formatting
(B) Standard
(C) Title
(D) None of these
58. What does an electronic spreadsheet consist of ?
(A) Rows
(B) Columns
(C) Cells
(D) All of these
59. Which of the following file format can be added to a PowerPoint show ?
(A) .jpg
(B) .gif
(C) .wav
(D) All of these
60. The Microsoft office button performs all the functions of
(A) File menu
(B) Slide show
(C) Insert
(D) Design
61. The most open source of DBMS is
(A) Microsoft SQL Server
(B) Microsoft Access
(C) My SQL
(D) Oracle
62. A Database Administrator (DBA) is a
(A) Program
(B) Person
(C) Application
(D) Operating System
63. Which object is used to create a form in database ?
(A) Tables and queries
(B) Tables only
(C) Tables and reports
(D) Queries and reports
64. In relational database, a field is a
(A) label
(B) table of information
(C) group of related records
(D) category of information
65. Which of the following is a DBMS software ?
(A) MS-Excel
(B) MS-Word
(C) MySQL
(D) None of these
66. By which command we can link a table with Excel Worksheet ?
(A) External data
(B) Join
(C) Attach
(D) Merge
67. Which tool is used to generate printout of a table’s structure ?
(A) Analyzer
(B) Designer
(C) Documenter
(D) Generator
68. A half-duplex communication channel that permits information to travel
(A) both ways at once
(B) both ways, but not at once
(C) one direction only
(D) at a timed intervals
69. Most of data communications involving telegraph lines use
(A) simplex lines
(B) wideband channel
(C) narrow-band channel
(D) dialed service
70. Fibre optic cables operate at frequencies near
(A) 20 MHz
(B) 200 MHz
(C) 2 GHz
(D) 800 THz
71. Different computers are connected to a LAN by a cable and
(A) Modem
(B) Interface card
(C) Special wires
(D) Telephone lines
72. Radiowaves are
(A) Omnidirectional
(B) Unidirectional
(C) Bidirectional
(D) All of these
73. The speed at which the monitor accepts data is called
(A) Bandwidth
(B) Interlacing
(C) Response time
(D) Scanning
74. Which of the following Network provide privacy ?
(A) LAN
(B) MAN
(C) VPM
(D) PAN
75. Which topology requires a multipoint connection ?
(A) Mesh
(B) Star
(C) Bus
(D) Ring
76. Which of the following is a type of repeaters ?
(A) Amplifier
(B) Signal repeater
(C) Network Interface Card
(D) Both (A) and (B)
77. The OSI reference model is
(A) worthless
(B) a protocol
(C) not a protocol
(D) All of these
78. Router operates in which layer of the OSI model ?
(A) Physical layer
(B) Data link layer
(C) Network layer
(D) All of these
79. A commonly used graphic format for the web is
(A) GIF
(B) BMP
(C) Text
(D) IMP
80. IP Address is currently
(A) 4 bytes long
(B) available in plenty
(C) 6-bytes long
(D) None of these
81. Which of the following explains cookies nature ?
(A) Non-volatile
(B) Volatile
(C) Intransient
(D) Transient
82. Rules for exchanging data between computers are called
(A) Procedures
(B) Protocols
(C) Hyperlinks
(D) Programs
83. The high-speed internet solution is installed using existing phone lines
(A) T1
(B) Cable
(C) DSL
(D) Satellite
84. A term relating to sending data to a satellite is
(A) downlink
(B) modulate
(C) demodulate
(D) uplink
85. The most popular client server application on the internet is
(A) Chatting
(B) Usenet
(C) Newsgroup
(D) E-mail
86. Inventor of E-mail is
(A) Bill Gates
(B) Timonthi Bil
(C) Linkan Galiobery
(D) Ray Tomlinson
87. Telnet is also known as
(A) FTP
(B) Cyber crime
(C) Remote login
(D) Both (A) and (B)
88. ‘Buy now-pay now’ is commonly used for
(A) Visa cards
(B) Vault cards
(C) Credit cards
(D) Debit cards
89. System program threats are
(A) trojan horse
(B) trap doors
(C) logic bomb
(D) All of these
90. By Salami attack virus we mean
(A) control viruses
(B) a small amount of money is saved from each computation
(C) trapdoors persist
(D) All of these
91. Worm was made up of
(A) one program
(B) two programs
(C) three programs
(D) four programs
92. The first computer virus is
(A) PARAM
(B) Love you
(C) Creeper
(D) The famous
93. Which of the following is an antivirus program ?
(A) Elk corner
(B) McAfee
(C) Trojan horse
(D) All of these
94. Who can challenge the issue of a patent ?
(A) Business competitors
(B) Inventor’s partners
(C) Anyone
(D) Federal government
95. A positive AND gate is also a negative
(A) NAND gate
(B) NOR gate
(C) AND gate
(D) OR gate
AND , ________
(A) NAND (B) NOR (C) AND (D) OR
15 Code No. : C-367/2017/Series-A
96. Which gate is known as universal gate ?
(A) NOT gate
(B) NAND gate
(C) AND gate
(D) XOR gate
97. An example of universal building block is
(A) XOR gate
(B) AND gate
(C) OR gate
(D) NOR gate
98. Which logic family is the fastest ?
(A) DTL
(B) TTL
(C) ECL
(D) CMOS
99. A logic gate which has low power consumption is
(A) TTL
(B) CMOS
(C) DTL
(D) RTL
100. Basic circuit of ECL family is
(A) NOR
(B) XOR
(C) CMOS
(D) NAND
101. Which of the following is not a combinational circuit ?
(A) Adder
(B) Substractor
(C) Multiplexer
(D) Counter
102. Full adder is used to
(A) 2-bit addition
(B) 3-bit addition
(C) 4-bit addition
(D) 6-bit addition
103. A combinational logic circuit, which generates a particular binary word or
number is
(A) decoder
(B) multiplexer
(C) encoder
(D) demultiplexer
104. Which of the following is a sequential logic circuit ?
(A) Adder
(B) Counter
(C) Multiplexer
(D) Encoder
105. How many parts of compiler are there ?
(A) 1
(B) 2
(C) 3
(D) 4
106. The output of a lexical analyzer is
(A) machine code
(B) intermediate code
(C) a list of tokens
(D) a parse tree
107. Software engineering is a
(A) layered technology
(B) physical technology
(C) emerging technology
(D) economical approach
108. How many steps are in the Software Development Life Cycle ?
(A) 4
(B) 5
(C) 6
(D) 10
109. Which of the following is a tool in design phase ?
(A) Abstraction
(B) Refinement
(C) Information hiding
(D) All of these
110. Software Quality Assurance is for
(A) Error prevention
(B) Error detection
(C) Error correction
(D) All of these
111. Build and fix model has
(A) 3 phases
(B) 1 phase
(C) 2 phases
(D) 4 phases
112. Alpha testing is performed by
(A) Customer
(B) Tester
(C) Developer
(D) All of these
113. Which of the following is not structural testing ?
(A) Regression
(B) Parallel
(C) Acceptance
(D) Stress
114. Pointer is
(A) data type (B) integer
(C) the address of variable
(D) a variable for storing address
115. Which type of parameter is passed in a function for faster execution ?
(A) call by value
(B) call by address
(C) call by name
(D) call by string
116. A program that predicts the exact sequence in which events will take place
is said to be
(A) Compiled
(B) Interpreted
(C) Procedural
(D) Object-oriented
117. Which of the following is not the concept of object-oriented programming ?
(A) Data abstraction
(B) Polymorphism
(C) Encapsulation
(D) None of these
118. Which language is not an object oriented language ?
(A) C
(B) C++
(C) Small talk
(D) Java
119. JVM is a virtual machine that can execute
(A) C language
(B) .net programming
(C) RDBMS
(D) Java Byte Code
120. Which of the following is not used as a data structure ?
(A) Array
(B) Linked list
(C) Graph
(D) Directory
.png)
.png)
No comments:
Post a Comment