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Computer Science MCQs

MCQs on Programming, Networking, Database and OS

75 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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1
Medium ppsc Uploaded: 09 Aug 2026

Who is considered the founder of the World Wide Web?

  • A Mark Zuckerberg
  • B Bill Gates
  • C Steve Jobs
  • D Tim Berners-Lee
2
Medium ppsc Uploaded: 13 Aug 2026

What is the full form of CPU clock speed unit MHz?

  • A Megahertz
  • B Megabytes
  • C Milliohms
  • D Megahours
3
Medium ppsc Uploaded: 13 Aug 2026

ASCII stands for?

  • A American Standard Code for Information Interchange
  • B American System Code for Information Interchange
  • C American Standard Coding for International Interchange
  • D Advanced Standard Code for Information Interchange
4
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
5
Medium ppsc Uploaded: 23 Aug 2026

Which data structure follows the LIFO principle?

  • A Queue
  • B Array
  • C Stack
  • D Linked List
6
Medium ppsc Uploaded: 09 Aug 2026

What is the full form of 'JPEG'?

  • A Joint Picture Export Group
  • B Java Photo Expert Group
  • C Joint Photographic Experts Group
  • D Java Picture Experts Group
7
Medium pms ppsc Uploaded: 07 Aug 2026

Which of the following best describes 'Big Data'?

  • A A programming language
  • B A small database table
  • C Extremely large and complex data sets
  • D A type of computer virus
8
Medium fpsc ppsc Uploaded: 20 Jun 2026

What is the primary purpose of RAID technology?

  • A Increase screen resolution
  • B Improve storage performance and reliability
  • C Enhance processor speed
  • D Manage network traffic
9
Medium ppsc Uploaded: 23 Aug 2026

Which number system uses only 0 and 1?

  • A Hexadecimal
  • B Octal
  • C Decimal
  • D Binary
10
Medium ppsc Uploaded: 09 Aug 2026

Which of the following is a type of computer network attack?

  • A Encryption
  • B Antivirus
  • C Firewall
  • D Phishing
11
Medium ppsc Uploaded: 13 Aug 2026

What is version control used for?

  • A Compiling programs
  • B Formatting code
  • C Designing interfaces
  • D Tracking and managing changes to code over time
12
Medium ppsc Uploaded: 23 Aug 2026

What is bandwidth in networking?

  • A The number of devices connected
  • B The physical length of a cable
  • C The maximum data transfer rate of a network
  • D The type of network topology
13
Medium css pms fpsc ppsc nts Uploaded: 25 Jun 2026

Which bus is primarily responsible for transferring data between the CPU and memory?

  • A Address Bus
  • B Expansion Bus
  • C Control Bus
  • D Data Bus
14
Medium css pms fpsc ppsc nts Uploaded: 01 Jul 2026

Which search algorithm explores all nodes one level at a time before moving to the next level?

  • A A* Search
  • B Depth-First Search (DFS)
  • C Breadth-First Search (BFS)
  • D Greedy Search
15
Medium css pms fpsc ppsc nts Uploaded: 25 Jun 2026

Why are Headers and Footers added to a document in MS Word?

  • A To mark the beginning of a page
  • B To improve the document's appearance
  • C To display repeating information such as page numbers, dates, and titles on printed pages
  • D To make a document easier to read
16
Medium ppsc Uploaded: 07 Aug 2026

Which of the following best describes deadlock in operating systems?

  • A A state where processes wait indefinitely for resources held by each other
  • B A type of virus attack
  • C A process that runs continuously
  • D A memory overflow error
17
Medium css pms fpsc ppsc nts Uploaded: 25 Jun 2026

Which memory type is most commonly used to store firmware in embedded systems?

  • A RAM
  • B Virtual Memory
  • C Cache Memory
  • D ROM
18
Medium ppsc Uploaded: 23 Aug 2026

Which of the following is an example of a relational database management system?

  • A Oracle Database
  • B Cassandra
  • C MongoDB
  • D Redis
19
Medium ppsc Uploaded: 09 Aug 2026

Which of the following is used to store a website's files and make it accessible online?

  • A Modem
  • B Switch
  • C Router
  • D Web Server
20
Medium ppsc Uploaded: 23 Aug 2026

Which of the following is a cloud storage service?

  • A Calculator
  • B MS Paint
  • C Google Drive
  • D Notepad
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