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Computer Science MCQs

MCQs on Programming, Networking, Database and OS

72 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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1
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
2
Medium nts Uploaded: 13 Aug 2026

Which shortcut key is used to select all content in a document?

  • A Ctrl+A
  • B Ctrl+P
  • C Ctrl+F
  • D Ctrl+S
3
Medium nts Uploaded: 13 Aug 2026

What is a computer virus?

  • A An antivirus tool
  • B A network protocol
  • C A self-replicating malicious program
  • D A hardware component
4
Medium fpsc nts Uploaded: 20 Jun 2026

Which protocol is used for receiving email in modern systems?

  • A IMAP
  • B SMTP
  • C DNS
  • D FTP
5
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
6
Medium nts Uploaded: 23 Aug 2026

Which file format is commonly used for images with transparency?

  • A PNG
  • B BMP
  • C GIF
  • D JPEG
7
Medium nts Uploaded: 23 Aug 2026

What is a computer network protocol?

  • A A database structure
  • B A type of hardware device
  • C A set of rules governing data communication
  • D A programming language
8
Medium nts Uploaded: 13 Aug 2026

What is a compiler?

  • A A hardware device
  • B A program that translates source code into machine code
  • C A network device
  • D A type of database
9
Medium nts Uploaded: 13 Aug 2026

What is an array?

  • A A network device
  • B A single variable
  • C A type of loop
  • D A collection of elements of the same type stored in contiguous memory
10
Medium nts Uploaded: 07 Aug 2026

What does the acronym 'RAM' NOT include?

  • A Volatility
  • B Permanent data storage
  • C Temporary data storage
  • D Fast access speed
11
Medium nts Uploaded: 13 Aug 2026

Which programming paradigm treats computation as evaluation of functions?

  • A Object Oriented
  • B Functional Programming
  • C Procedural
  • D Logic Programming
12
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
13
Medium nts Uploaded: 23 Aug 2026

Who invented the World Wide Web?

  • A Mark Zuckerberg
  • B Steve Jobs
  • C Bill Gates
  • D Tim Berners-Lee
14
Medium fpsc nts Uploaded: 20 Jun 2026

Which sorting algorithm repeatedly selects the smallest element and places it in the correct position?

  • A Merge Sort
  • B Quick Sort
  • C Selection Sort
  • D Heap Sort
15
Medium nts Uploaded: 07 Aug 2026

Which of the following is an advantage of cloud storage?

  • A Access data from anywhere with internet connection
  • B Always more secure than local storage
  • C Cannot be shared with others
  • D Requires no internet connection
16
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
17
Medium nts Uploaded: 09 Aug 2026

What is the purpose of 'debugging' in programming?

  • A Store data
  • B Compile code
  • C Identify and fix errors in code
  • D Design interfaces
18
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
19
Medium nts Uploaded: 23 Aug 2026

Which of the following is a DBMS software?

  • A MS Word
  • B VLC
  • C MySQL
  • D Photoshop
20
Medium nts Uploaded: 13 Aug 2026

What is the goal of software maintenance?

  • A Writing new software
  • B Designing databases
  • C Testing hardware
  • D Fixing bugs and updating software after deployment
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