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Computer Science MCQs

MCQs on Programming, Networking, Database and OS

145 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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Medium css pms Uploaded: 20 Jun 2026

Which software development model follows a sequential approach?

  • A Agile
  • B Scrum
  • C Waterfall
  • D DevOps
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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
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Hard css fpsc Uploaded: 07 Aug 2026

What is the primary function of DHCP in networking?

  • A Automatically assign IP addresses to devices
  • B Compress data packets
  • C Encrypt network traffic
  • D Block unauthorized websites
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Medium css Uploaded: 23 Aug 2026

Which of the following represents 1024 bytes?

  • A 1 Megabyte
  • B 1 Gigabyte
  • C 1 Kilobyte
  • D 1 Terabyte
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Medium css Uploaded: 23 Aug 2026

Which device converts analog signals to digital signals?

  • A Router
  • B ADC
  • C DAC
  • D Modem
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Medium css fpsc Uploaded: 20 Jun 2026

Which database operation removes a table completely?

  • A DELETE
  • B REMOVE
  • C DROP
  • D CLEAR
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Medium css pms fpsc ppsc nts Uploaded: 25 Jun 2026

On which tab in Microsoft Word can you find the Header and Footer commands?

  • A Home
  • B References
  • C View
  • D Insert
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Medium css fpsc Uploaded: 20 Jun 2026

Which of the following is a NoSQL database?

  • A Oracle
  • B MySQL
  • C MongoDB
  • D PostgreSQL
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Medium css fpsc Uploaded: 20 Jun 2026

What is the time complexity of Binary Search in the worst case?

  • A O(n)
  • B O(log n)
  • C O(n²)
  • D O(1)
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Medium css fpsc Uploaded: 20 Jun 2026

Which programming language is commonly used for data analysis and machine learning?

  • A COBOL
  • B Python
  • C Pascal
  • D Fortran
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Medium css Uploaded: 23 Aug 2026

What is the function of Ctrl+Alt+Delete in Windows?

  • A To save a file
  • B To paste text
  • C To open task manager or security options
  • D To copy text
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Medium css pms fpsc ppsc nts Uploaded: 01 Jul 2026

Which data structure is primarily used by the Depth-First Search (DFS) algorithm?

  • A Queue
  • B Hash Table
  • C Stack
  • D Heap
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Hard css pms Uploaded: 20 Jun 2026

Which algorithm technique divides a problem into smaller subproblems?

  • A Greedy
  • B Divide and Conquer
  • C Brute Force
  • D Backtracking
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Medium css Uploaded: 09 Aug 2026

Which of the following is a valid IP address version widely used today alongside IPv6?

  • A IPv2
  • B IPv4
  • C IPv5
  • D IPv3
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Medium css pms fpsc ppsc nts Uploaded: 25 Jun 2026

Who co-invented the World Wide Web (WWW) alongside Robert Cailliau?

  • A Tom Berners
  • B Mark Zuckerberg
  • C Tim Berners-Lee
  • D Bill Gates
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Hard css Uploaded: 07 Aug 2026

Which of these is a valid file extension for an image?

  • A .doc
  • B .jpg
  • C .mp3
  • D .exe
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Medium css Uploaded: 09 Aug 2026

What is the primary purpose of cloud computing?

  • A Repair hardware
  • B Store and access data over the internet
  • C Design websites
  • D Print documents
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Hard css Uploaded: 07 Aug 2026

What is the purpose of an operating system's file system?

  • A Increase internet speed
  • B Design graphics
  • C Organize and manage data storage on a device
  • D Compile source code
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Medium css Uploaded: 23 Aug 2026

Which of the following is a popular web browser?

  • A Google Chrome
  • B WinRAR
  • C Adobe Reader
  • D MS Word
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Easy css Uploaded: 07 Aug 2026

Which data structure uses LIFO order?

  • A Stack
  • B Queue
  • C Linked List
  • D Array
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