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Computer Science MCQs

MCQs on Programming, Networking, Database and OS

179 Questions Subject Test
Subject Preparation Guide

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

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81
Easy nts Uploaded: 20 Jun 2026

Which file format is commonly used for presentations?

  • A .xlsx
  • B .pptx
  • C .accdb
  • D .csv
82
Easy nts Uploaded: 20 Jun 2026

Which PowerPoint view is best for rearranging slides?

  • A Reading View
  • B Slide Sorter
  • C Notes View
  • D Outline View
83
Hard nts Uploaded: 13 Aug 2026

1 Byte equals how many bits?

  • A 32 bits
  • B 4 bits
  • C 16 bits
  • D 8 bits
84
Easy nts Uploaded: 13 Aug 2026

What does 'Ctrl+F' do in most applications?

  • A Save a file
  • B Find text within a document
  • C Close a file
  • D Format text
85
Medium nts Uploaded: 23 Aug 2026

Which company developed the Java programming language?

  • A IBM
  • B Microsoft
  • C Apple
  • D Sun Microsystems
86
Easy ppsc nts Uploaded: 20 Jun 2026

Which search engine was founded by Larry Page and Sergey Brin?

  • A Yahoo
  • B Bing
  • C Google
  • D DuckDuckGo
87
Hard nts Uploaded: 07 Aug 2026

Which of the following is an example of an assistive input device?

  • A Standard Speaker
  • B Braille Keyboard
  • C Standard Monitor
  • D Standard Printer
88
Easy fpsc nts Uploaded: 20 Jun 2026

Which protocol translates domain names into IP addresses?

  • A HTTP
  • B FTP
  • C DNS
  • D SSH
89
Hard nts Uploaded: 09 Aug 2026

Which sorting algorithm has the best average time complexity?

  • A Quick Sort
  • B Bubble Sort
  • C Selection Sort
  • D Insertion Sort
90
Medium nts Uploaded: 23 Aug 2026

What is the purpose of indexing in a database?

  • A To delete duplicate records
  • B To speed up data retrieval operations
  • C To back up the database
  • D To encrypt sensitive data
91
Easy nts Uploaded: 20 Jun 2026

What is CSV short for?

  • A Computer Saved Values
  • B Comma Separated Values
  • C Column Stored Variables
  • D Common Spreadsheet View
92
Medium nts Uploaded: 07 Aug 2026

In database normalization, which normal form eliminates transitive dependency?

  • A Second Normal Form (2NF)
  • B Third Normal Form (3NF)
  • C First Normal Form (1NF)
  • D Fourth Normal Form (4NF)
93
Medium nts Uploaded: 07 Aug 2026

Which of the following best defines 'artificial intelligence'?

  • A A network protocol
  • B A file storage format
  • C A type of computer hardware
  • D Simulation of human intelligence by machines
94
Medium nts Uploaded: 23 Aug 2026

What is the function of the CPU's control unit?

  • A To display graphics
  • B To direct the operations of the processor
  • C To connect to networks
  • D To store data permanently
95
Medium css pms fpsc ppsc nts Uploaded: 25 Jun 2026

Who is widely regarded as the father of Computer Science?

  • A John von Neumann
  • B Alan Turing
  • C Charles Babbage
  • D Bill Gates
96
Medium fpsc nts Uploaded: 20 Jun 2026

Which SQL command modifies existing records?

  • A INSERT
  • B DELETE
  • C UPDATE
  • D SELECT
97
Hard nts Uploaded: 07 Aug 2026

Which of the following best describes 'Big O notation'?

  • A A programming language
  • B A way to express the efficiency or complexity of an algorithm
  • C A network protocol
  • D A type of database index
98
Hard nts Uploaded: 23 Aug 2026

What is the full form of WWW?

  • A World Wide Web
  • B Wide World Web
  • C World Web Wide
  • D World Wide Website
99
Easy ppsc nts Uploaded: 20 Jun 2026

Which protocol is used to automatically assign IP addresses to devices on a network?

  • A DNS
  • B DHCP
  • C SMTP
  • D SNMP
100
Easy nts Uploaded: 20 Jun 2026

Which database object stores data in MS Access?

  • A Form
  • B Report
  • C Table
  • D Macro
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