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Computer Science MCQs

MCQs on Programming, Networking, Database and OS

601 Questions Subject Test

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Strengthen your knowledge of computer fundamentals, hardware, software, programming, networks, databases and information technology.

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Filter: All Exams css pms fpsc ppsc nts | All Easy Medium Hard

21

Medium css pms fpsc ppsc nts Uploaded: 01 Jul 2026

What does "GPT" stand for in ChatGPT?

A Global Prediction Technique
B Generative Pre-trained Transforme
C General Processing Tool
D Graphical Pattern Tracke

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22

Medium fpsc Uploaded: 23 Aug 2026

What is the function of an Ethernet cable?

A To display graphics
B To provide wireless connectivity
C To connect devices in a wired network
D To store data

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23

Easy fpsc nts Uploaded: 20 Jun 2026

What is an IP address?

A Database key
B Unique network identifier
C Programming variable
D File format

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24

Easy nts Uploaded: 09 Aug 2026

What is the main purpose of an antivirus program?

A Detect and remove malicious software
B Manage files
C Browse internet
D Speed up computer

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25

Hard nts Uploaded: 13 Aug 2026

Which of the following best defines 'syntax error'?

A Hardware malfunction
B Violation of programming language rules
C Network failure
D Logical mistake in code

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26

Medium css Uploaded: 07 Aug 2026

What is the main function of a computer's cache memory?

A Permanently store operating system files
B Speed up data access between CPU and main memory
C Display graphics on the monitor
D Increase the size of the hard drive

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27

Hard ppsc Uploaded: 23 Aug 2026

What is the term for unwanted repetitive email messages?

A Cache
B Cookies
C Spam
D Malware

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28

Easy ppsc nts Uploaded: 20 Jun 2026

Which command is used to add new records to a database table?

A UPDATE
B SELECT
C INSERT
D ALTER

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29

Medium pms Uploaded: 13 Aug 2026

What does Wi-Fi stand for?

A Wireless Fidelity
B Wireless Field
C Wireless Finder
D Wide Fidelity

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30

Easy pms Uploaded: 23 Aug 2026

What is a computer worm?

A A type of firewall
B A programming language
C Self-replicating malware that spreads across networks
D A hardware component

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31

Medium css Uploaded: 13 Aug 2026

Which of the following best describes 'hashing' in computer science?

A Encrypting data reversibly
B Converting data into a fixed-size value using a function
C Backing up data
D Compressing files

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32

Easy css Uploaded: 07 Aug 2026

What is the full form of URL?

A Uniform Record Locator
B Universal Record Locator
C Universal Resource Locator
D Uniform Resource Locator

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33

Easy pms Uploaded: 09 Aug 2026

Which of the following is an example of a mobile operating system?

A Linux
B Android
C Ubuntu
D Windows Server

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34

Medium fpsc Uploaded: 13 Aug 2026

Which of the following best defines 'bandwidth' in networking?

A Number of connected devices
B Speed of a CPU
C Storage capacity of a hard disk
D Maximum rate of data transfer across a network

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35

Medium css Uploaded: 23 Aug 2026

Which of the following is used to reduce file size for storage or transmission?

A Formatting
B Compression
C Encryption
D Partitioning

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36

Medium css pms Uploaded: 20 Jun 2026

What is a macro in MS Office?

A Database
B Automated task sequence
C Chart type
D Network protocol

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37

Medium css Uploaded: 13 Aug 2026

A deadlock in an operating system occurs when?

A CPU is idle
B A program crashes
C Processes wait indefinitely for resources held by each other
D Memory is full

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38

Medium pms Uploaded: 09 Aug 2026

What is the binary equivalent of decimal number 10?

A 1010
B 1100
C 1011
D 1001

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39

Hard fpsc Uploaded: 13 Aug 2026

What does OOP stand for?

A Object Oriented Programming
B Object Output Programming
C Ordered Object Programming
D Output Oriented Programming

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40

Medium css Uploaded: 07 Aug 2026

What is the main advantage of using a linked list over an array?

A Dynamic size allocation
B Faster random access
C Less memory usage always
D Simpler syntax

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