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Computer Science MCQs

MCQs on Programming, Networking, Database and OS

601 Questions Subject Test
Subject Preparation Guide

Prepare Computer Science with confidence

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

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Recommended for academic classes, IT tests and computer portions of competitive examinations.
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261
Hard css Uploaded: 07 Aug 2026

Which company developed the Windows operating system?

  • A Google
  • B Apple
  • C IBM
  • D Microsoft
262
Medium css Uploaded: 09 Aug 2026

What is the primary purpose of encryption?

  • A Store data permanently
  • B Compress data
  • C Increase internet speed
  • D Secure data by converting it into unreadable format
263
Hard fpsc Uploaded: 13 Aug 2026

Which SQL clause is used to filter records?

  • A WHERE
  • B HAVING
  • C GROUP BY
  • D ORDER BY
264
Medium ppsc Uploaded: 07 Aug 2026

Which of the following is a common wireless communication standard for short-range data transfer?

  • A Bluetooth
  • B Fiber Optic
  • C Ethernet
  • D Coaxial Cable
265
Medium pms Uploaded: 23 Aug 2026

What is IPv6?

  • A A version of Internet Protocol using 128-bit addresses
  • B A database index
  • C A programming language
  • D A type of firewall
266
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
267
Hard nts Uploaded: 13 Aug 2026

1 Byte equals how many bits?

  • A 32 bits
  • B 4 bits
  • C 16 bits
  • D 8 bits
268
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
269
Hard pms Uploaded: 07 Aug 2026

Which of the following is a characteristic of a good algorithm?

  • A Unclear output
  • B Ambiguity
  • C Infinite steps
  • D Finiteness
270
Medium nts Uploaded: 23 Aug 2026

Which company developed the Java programming language?

  • A IBM
  • B Microsoft
  • C Apple
  • D Sun Microsystems
271
Hard fpsc Uploaded: 13 Aug 2026

Which of the following best describes 'e-commerce'?

  • A Buying and selling goods online
  • B A type of programming language
  • C A network protocol
  • D A database system
272
Medium ppsc Uploaded: 23 Aug 2026

What is cache memory used for?

  • A To connect to networks
  • B To display graphics
  • C To temporarily store frequently accessed data for quick access
  • D To permanently store files
273
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
274
Easy fpsc Uploaded: 09 Aug 2026

Which of the following is used for wireless internet connectivity?

  • A Wi-Fi
  • B USB Cable
  • C HDMI Cable
  • D Ethernet Cable
275
Medium css Uploaded: 13 Aug 2026

Which SDLC model follows a strict sequential approach?

  • A Agile
  • B Spiral
  • C Iterative
  • D Waterfall
276
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
277
Medium pms Uploaded: 23 Aug 2026

What is the purpose of an interpreter?

  • A To translate entire code at once
  • B To design databases
  • C To execute code line by line
  • D To manage hardware
278
Hard css pms Uploaded: 20 Jun 2026

Which programming paradigm focuses on functions and immutability?

  • A Procedural Programming
  • B Object-Oriented Programming
  • C Functional Programming
  • D Assembly Programming
279
Hard ppsc Uploaded: 13 Aug 2026

What does DBMS stand for?

  • A Database Management System
  • B Data Backup Management System
  • C Database Monitoring System
  • D Data Base Modeling System
280
Medium ppsc Uploaded: 23 Aug 2026

What is a computer's clock speed measured in?

  • A Bytes
  • B Pixels
  • C Hertz
  • D Bits
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