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 If you are looking objective type Computer Science MCQs with solved answers you're here on right page. Learn Public Service Commission objective type MCQs of Computer Study. All of these MCQs of Computer Science are helpful for learning Computer tests and jobs interviews in IT sections.

Computer MCQs


Many Data Entry and Computer Operator Jobs these types of MCQs are mostly asked. Learn here objective type MCQs of Computer Science Online with Solved answers.

Computer Science MCQs Objective Type Quiz Tests With Answers


Q.1: HTML is an abbreviation of?
  1. HiTech Meaningful Language
  2. HyperText Meaningful Language
  3. HiTech Markup Language
  4. HyperText Markup Language
D
Q.2: ----- is a device from where the information is sent?
  1. Transmitter
  2. Spreadsheet
  3. Simulation
  4. Modulation
A
Q.3: ----- is a mathematical model of a real system in the form of a computer program?
  1. Transmitter
  2. Spreadsheet
  3. Simulation
  4. Modulation
C
Q.4: LAN is an abbreviation of?
  1. Large Access Network
  2. Local Access Network
  3. Large Area Network
  4. Local Area Network
D
Q.5: Which from the following do not represent numbers with decimal places?
  1. integer
  2. float
  3. double
  4. long double
A
Q.6: In peer-to-peer networking?
  1. there is only one server and many clients
  2. there is only one client and many servers
  3. every computer is capable of playing the role of server
  4. every computer is capable of playing the role of client, server or both at the same time
D
Q.7: URL is an abbreviation for?
  1. Universal Resource Locator
  2. Uniform Resource Locator
  3. Universal Resource Location
  4. Uniform Resource Location
B
Q.8: The network in which we connect each node to the network along a single piece of network cable is called?
  1. Bus Network Topology
  2. Star Network Topology
  3. Ring Network Topology
  4. None of these
A
Q.9: The network in which we connect each network node to a central device (hub) is called?
  1. Bus Network Topology
  2. Star Network Topology
  3. Ring Network Topology
  4. None of these
B
Q.10: FTP is an abbreviation for?
  1. File Transfer Position
  2. File Transfer Protection
  3. File Transfer Protocol
  4. File Transfer Possibility
C
Q.11: IDE is an abbreviation of?
  1. Integrated Dual Environment
  2. Inter Development Environment
  3. Integrated Development Environment
  4. Inter Dual Environment
C
Q.12: A language that is closed to human language is called?
  1. Low-Level language
  2. High-Level language
  3. Programming language
  4. Machine language
B
Q.13: CBT stands for?
  1. Computer Based Training
  2. Computer Based Trading
  3. Computer Based Technology
  4. None Of These
A
Q.14: A virus that replicates itself is called?
  1. Bug
  2. Worm
  3. Bomb
  4. Hoax
B
Q.15: The tool used to find a similar word in a document is called?
  1. Finder
  2. Thesaurus
  3. Dictionary
  4. Find and Replace
B
Q.16: Which of the following components of physical database design refer to the correctness and consistency of data?
  1. Indexes
  2. Integrity constraints
  3. File organization
  4. Data Distribution strategy
C
Q.17: conio.h stands for?
  1. character input output
  2. console input output
  3. common input output
  4. complex input output
B
Q.18: Duplication of data in multiple files is called?
  1. Data Redundancy
  2. Data Dependence
  3. Data Inconsistency
  4. None Of These
A
Q.19: A relation that contains minimal redundancy and allows easy use is called?
  1. Clean
  2. Simple
  3. Complex
  4. Well-Structured
D
Q.20: SQL stands for?
  1. Structured Query Language
  2. Sequential Query Language
  3. Simple Query Language
  4. None Of These
A
Q.21: Which register stores the result of ALU operations?
  1. Data Register
  2. Instruction Register
  3. Data Address Register
  4. Accumulator Register
D
Q.22: A collection of rules for writing programs in a programming language is known as?
  1. Syntax
  2. Program logic
  3. Program Standards
  4. None Of These
A
Q.23: Which one connects two similar network segments?
  1. Router
  2. Bridge
  3. Gateway
  4. Node
B
Q.24: Which of the following device uses the parallel transmission?
  1. Mouse
  2. Keyboard
  3. Printer
  4. Light Pen
C
Q.25: What is a diagrammatic way of representing the relationship between the entities in a database?
  1. Flowchart
  2. ERD
  3. DFD
  4. Algorithm
B
Q.26: Which transmission allows data to travel in both directions but only one direction at a time?
  1. Simplex
  2. Full duplex
  3. Half duplex
  4. Reverse
C
Q.27: Another name for free software is?
  1. Encrypted Software
  2. Copy Protected Software
  3. Shareware
  4. Public Domain Software
D
Q.28: DPI stands for?
  1. Dot Per Inch
  2. Decimal Per Inch
  3. Digit Per Inch
  4. Data Per Inch
A
Q.29: A small high speed memory inside CPU is?
  1. RAM
  2. ROM
  3. Cache
  4. Register
D
Q.30: -------- are used to evaluate compound conditions?
  1. Arithmetic Operators
  2. Logical Operators
  3. Relational Operators
  4. Assignment Operators
B
Q.31: MICR stands for?
  1. Magic In Character Redo
  2. Magnetic Ink Character Recorder
  3. Magnetic Ink Character Reader
  4. None Of These
C
Q.32: ---------- is used to control all the parts of a manufacturing process?
  1. ATM
  2. CAM
  3. CAD
  4. MICR
B
Q.33: CPU consists of the following parts?
  1. Control unit and ALU
  2. CU and Main memory
  3. Main memory and ALU
  4. Operating system and Main memory
A
Q.34: MHz stands for?
  1. Millihertz
  2. Microhertz
  3. Megahertz
  4. None Of These
C
Q.35: DRAM stands for?
  1. Digital Random Access Memory
  2. Dynamic Random Access Memory
  3. Digital Read Access Memory
  4. Dynamic Read Access Memory
B
Q.36: The dots that compose the image of a digital photograph are called ----------?
  1. Points
  2. Resolution Points
  3. Digital Points
  4. Pixels
D
Q.37: A type of reader commonly used to read UPC code is ----------?
  1. Bar-code reader
  2. Optical-mark reader
  3. Magnetic-ink reader
  4. Both A and C
A
Q.38: Caps Lock is a?
  1. Window key
  2. Modifier key
  3. Toggle key
  4. Cursor control key
C
Q.39: GPS stands for?
  1. Global Pointing System
  2. Global Positioning System
  3. Google Positioning System
  4. None Of These
B
Q.40: Internet surfing is an example of?
  1. Half duplex
  2. Simplex
  3. Full duplex
  4. None Of These
A
Q.41: Analog signal is measured in?
  1. Volt
  2. Hertz
  3. Digits
  4. WATTS
A
Q.42: --------- uses liquid crystal between the glass plates?
  1. ELD
  2. LCD
  3. CRT
  4. None of These
B
Q.43: Open System Interconnection(OSI) model consists of --------- layers?
  1. Eight
  2. Six
  3. Seven
  4. Five
C
Q.44: Which of the following coding schemes uses 4-bit code?
  1. Unicode
  2. ASCII
  3. EBCDIC
  4. BCD
D
Q.45: Which of the following communication medium requires “line-of-sight”?
  1. Microwave
  2. Fiber-Optic cable
  3. Twisted-Pair cable
  4. Coaxial cable
A
Q.46: --------- is a collection of system programs that controls and co-ordinates the overall operations of a computer system?
  1. System software
  2. Operating system
  3. Utility program
  4. Device driver
B
Q.47: The translated program into machine code is called ---------?
  1. Source program
  2. Object program
  3. System program
  4. None Of These
B
Q.48: FormatC is an example of virus ---------?
  1. Chernobal
  2. Logic Bomb
  3. Boot Sector
  4. Torjan Horse
D
Q.49: What type of operating system MS-DOS is?
  1. Command Line Interface
  2. Graphical User Interface
  3. Multitasking
  4. Menu Driven Interface
A
Q.50: Which of the following keyboard shortcuts is used to change the case?
  1. Ctrl+F3
  2. Alt+F3
  3. Shift+F3
  4. Ctrl+Shift+F3
C
Q.51: Which technology is used in compact disks?
  1. Mechanical
  2. Electrical
  3. Electro Magnetic
  4. Laser
D
Q.52: Operating system, editors and debuggers come under?
  1. System software
  2. Application software
  3. Utilities
  4. None Of These
A
Q.53: Which one is the Low-Level language?
  1. Visual Basics
  2. Java
  3. Assembly
  4. C++
C
Q.54: A modulator is used to convert?
  1. Digital signals into analog signals
  2. Analog signals into digital signals
  3. Both A and B
  4. None Of These
A
Q.55: Which one is a Dot Matrix printer?
  1. Laser Printer
  2. Inkjet Printer
  3. Impact Printer
  4. Drum Printer
C
Q.56: CRT stands for?
  1. Cathode Rays Tube
  2. Clarity Rays Tube
  3. Crystal Rays Tube
  4. None Of These
A
Q.57: A computer program that translates one statement of program instructions at a time into machine language is called?
  1. CPU
  2. Interpreter
  3. Compiler
  4. Simulator
B
Q.58: NTFS stands for?
  1. New Trend File Saving
  2. Network File Saving
  3. New Technology File System
  4. None Of These
C
Q.59: In MS Windows key F1 is mostly used for?
  1. Help
  2. Exit
  3. Save
  4. Refresh
A
Q.60: 1 Gigabyte is equal to?
  1. 1024 bits
  2. 1024 bytes
  3. 1024 kilobytes
  4. 1024 megabytes
D
Q.61: The most widely used code for representing characters in computers is?
  1. ASCII
  2. BCD
  3. EBCDIC
  4. None Of These
A
Q.62: The type of reader commonly used to read bank cheques is?
  1. OPtical-mark reader
  2. Magnetic-ink reader
  3. Bar-code reader
  4. None Of These
B
Q.63: Which of the following devices stores instructions that help the computer startup?
  1. Keyboard
  2. RAM
  3. ROM
  4. Hard disk
C
Q.64: The computer can move data and instructions between storage and memory as needed, in a process called?
  1. Volatility
  2. Swapping
  3. Pipelining
  4. Exchanging
B
Q.65: When you press a key, which device notifies the system software?
  1. Keyboard
  2. Keyboard Controller
  3. Keyboard Buffer
  4. Keyboard Handler
B
Q.66: DOS was introduced by?
  1. IBM
  2. Xerox
  3. Microsoft
  4. Bell labs
A
Q.67: Which of the following operating system is based on open-source software?
  1. UNIX
  2. Windows 2000
  3. Windows NT
  4. Linux
D
Q.68: The amount of time taken by a device to begin reading data is called?
  1. Seek time
  2. Read time
  3. Access time
  4. Write time
C
Q.69: The RAID technology that contributes to fault tolerance is called?
  1. Disk mirroring
  2. Tolerant computing
  3. Data striping
  4. None Of These
A
Q.70: MAN stands for?
  1. Metropolitan Arranged Network
  2. Marked Area Network
  3. Manufactured Arrangements of Networks
  4. Metropolitan Area Network
D
Q.71: The software used for workgroup computing is called?
  1. Shareware
  2. Freeware
  3. Groupware
  4. Both A and B
C
Q.72: Which of the following standards were developed without any formal planning?
  1. De Facto
  2. De Jure
  3. ISO
  4. Both A and B
A
Q.73: Which of the following is LAN protocol?
  1. Ethernet
  2. ARCnet
  3. Token Ring
  4. All
D
Q.74: Which one is the Bottom-most layer of OSI model?
  1. Data link
  2. Physical
  3. Network
  4. Transport
B
Q.75: Data is transmitted block-by-block in ----------- transmission?
  1. Digital
  2. Analog
  3. Synchronous
  4. Asynchronous
C
Q.76: An important property of fiber optic is?
  1. Refraction
  2. Reflection
  3. Interface
  4. None Of These
A
Q.77: The process to convert analog signals into digital signals is called?
  1. Modulation
  2. Demodulation
  3. Digitization
  4. Conversion
B
Q.78: Which of the following memories can be re-written by using electrical devices?
  1. PROM
  2. ROM
  3. EEPROM
  4. EPROM
C
Q.79: ----------- virus is a polymorphic virus. Polymorphic means “changes nature with passage of time”?
  1. Redlof
  2. Torjan Horse
  3. Chernobal
  4. Logic Bomb
A
Q.80: Which of the following protocols is used by World Wide Web(www)?
  1. TCP/IP
  2. Ethernet
  3. FTP
  4. HTTP
D
Q.81: A primary key that consists of more than one attribute is called a?
  1. Foreign key
  2. Composite key
  3. Multivalued key
  4. Global key
B
Q.82: An attribute in database is also known as?
  1. Tuple
  2. Relation
  3. Row
  4. Field
D
Q.83: C language was developed by?
  1. Van Neumann
  2. Dennis Ritchie
  3. Charles Babbage
  4. John Backus
B
Q.84: A space in computer’s memory set aside for some data that can be changed is called?
  1. Variable
  2. Constant
  3. Integer
  4. Floating Point
A
Q.85: Which of the following components is used to convert first .c to first .exe?
  1. Compiler and header
  2. Header and linker
  3. Compiler and linker
  4. Compiler only
C
Q.86: Which of the database objects allows to extract specific information from tables?
  1. Queries
  2. Forms
  3. Reports
  4. Records
A
Q.87: The instructions that are given to the compiler before the beginning of actual program are?
  1. C statements
  2. Preprocessor directive
  3. Linking instructions
  4. C instructions
B
Q.88: Which key combination is used to run C program?
  1. Alt+F9
  2. Ctrl+S
  3. Alt+F5
  4. Ctrl+F9
D
Q.89: Different attributes in two different tables having same name are referred to as?
  1. Acronym
  2. Synonym
  3. Homonym
  4. Mutually exclusive
C
Q.90: SQL is a/an?
  1. Unstructured language
  2. Structured language
  3. Object oriented language
  4. Software
B
Q.91: The loop which never ends is called?
  1. Infinite loop
  2. Running loop
  3. Continuous loop
  4. Nested loop
A
Q.92: Another term for a conditional operator is?
  1. Binary
  2. Iteration
  3. Selective
  4. Ternary
D
Q.93: The total number of keywords in C are?
  1. 60
  2. 42
  3. 32
  4. 50
C
Q.94: What does CIM stand for?
  1. Computer Integrated Manufacturing
  2. Copy In Memory
  3. Computer International Management
  4. Computer Intel Marketing
A
Q.95: Which register normally functions as a 16-bit counter that controls the sequence in which the instructions are fetched from memory?
  1. PC
  2. IR
  3. DR
  4. DAR
A
Q.96: Access time for most of memories is measured in?
  1. Microseconds
  2. Milliseconds
  3. Nanoseconds
  4. Megahertz
C
Q.97: A database consists of various components called?
  1. Tools
  2. Properties
  3. Entities
  4. Objects
D
Q.98: Which of the following terms is related to the features of cascading deletion?
  1. Data integrity
  2. Data redundancy
  3. Referential integrity
  4. Indexing
C
Q.99: ATM stands for?
  1. Automatic Talking Machine
  2. Automatic Teller Machine
  3. Analog Teller Machine
  4. Automatic Ticketing Machine
B
Q.100: Who is known as “Father of Computer Science”?
  1. Charles Babbage
  2. Howard Aiken
  3. Dr.Herman Hollerith
  4. Blaise Pascal
A
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