Join WhatsApp ChannelDaily MCQs & Exam Updates

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.

Computer BasicsProgrammingNetworksDatabases
Recommended for academic classes, IT tests and computer portions of competitive examinations.
Computer Science preparation illustration
Subject Test

Test your Computer Science preparation

Questions are tracked as practiced when you open Show Answer & Explanation. Tracking stays only in this browser tab and no subject-test result is saved.

Practiced MCQs
0 / 601
Use the MCQs you already prepared, or launch a random test from the full subject bank.
No login required Result is not saved Choose your own MCQ count & timer
Choose your test mode
Choose any number up to 601 available MCQs.
Enter 0 for no timer, or choose 1–300 minutes.
Tip: prepare some MCQs first, then start a quick self-check from My Practiced MCQs to test exactly what you studied.
Filter: All Exams css pms fpsc ppsc nts | All Easy Medium Hard
381
Medium ppsc Uploaded: 09 Aug 2026

What does 'RAM' primarily affect in a computer's performance?

  • A Storage capacity
  • B Screen resolution
  • C Multitasking speed
  • D Battery life
View Answer & Explanation Permalink
382
Medium fpsc Uploaded: 13 Aug 2026

What is an API?

  • A Application Programming Interface
  • B Application Process Integration
  • C Automated Programming Instruction
  • D Advanced Program Interaction
View Answer & Explanation Permalink
383
Medium ppsc Uploaded: 07 Aug 2026

What is the function of a router in a network?

  • A Display graphical content
  • B Store files permanently
  • C Direct data packets between different networks
  • D Compile program code
View Answer & Explanation Permalink
384
Medium ppsc Uploaded: 23 Aug 2026

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

  • A Firewall
  • B Compiler
  • C Kernel
  • D Mesh
View Answer & Explanation Permalink
385
Easy nts Uploaded: 20 Jun 2026

Which Excel function is used to calculate the average of a range of numbers?

  • A SUM()
  • B COUNT()
  • C AVERAGE()
  • D MAX()
View Answer & Explanation Permalink
386
Medium pms Uploaded: 13 Aug 2026

What is the Internet of Things (IoT)?

  • A A single computer network
  • B A type of database
  • C A programming language
  • D A network of interconnected physical devices
View Answer & Explanation Permalink
387
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
View Answer & Explanation Permalink
388
Hard fpsc Uploaded: 13 Aug 2026

Which of the following is an advantage of using pseudocode before coding?

  • A It runs directly on hardware
  • B It helps plan program logic clearly before implementation
  • C It compiles faster than real code
  • D It replaces the need for testing
View Answer & Explanation Permalink
389
Hard pms Uploaded: 07 Aug 2026

Which protocol is used to send email?

  • A FTP
  • B SMTP
  • C HTTP
  • D DNS
View Answer & Explanation Permalink
390
Medium ppsc Uploaded: 13 Aug 2026

What is the function of a graphics card?

  • A Render images and video output
  • B Store data permanently
  • C Cool the CPU
  • D Provide internet connection
View Answer & Explanation Permalink
391
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
View Answer & Explanation Permalink
392
Medium fpsc Uploaded: 23 Aug 2026

Which wireless technology is commonly used for short-range device connections?

  • A Bluetooth
  • B Fiber Optic
  • C Ethernet
  • D DSL
View Answer & Explanation Permalink
393
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
View Answer & Explanation Permalink
394
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
View Answer & Explanation Permalink
395
Easy pms Uploaded: 13 Aug 2026

What does SDLC stand for?

  • A System Design Life Cycle
  • B Software Development Life Cycle
  • C System Development Logic Cycle
  • D Software Design Life Cycle
View Answer & Explanation Permalink
396
Medium pms Uploaded: 07 Aug 2026

Which of the following is NOT a valid programming paradigm?

  • A Procedural Programming
  • B Functional Programming
  • C Object-Oriented Programming
  • D Sequential Logic Rendering
View Answer & Explanation Permalink
397
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
View Answer & Explanation Permalink
398
Hard nts Uploaded: 23 Aug 2026

Which key combination is used to copy text in Windows?

  • A Ctrl+V
  • B Ctrl+C
  • C Ctrl+X
  • D Ctrl+Z
View Answer & Explanation Permalink
399
Medium pms Uploaded: 13 Aug 2026

What is the function of Microsoft Outlook?

  • A Spreadsheet management
  • B Presentation design
  • C Email and calendar management
  • D Database management
View Answer & Explanation Permalink
400
Easy nts Uploaded: 23 Aug 2026

What is the function of the Windows Registry?

  • A To scan documents
  • B To manage printers
  • C To browse the internet
  • D To store configuration settings for the OS and software
View Answer & Explanation Permalink
All Subjects
Biology 210 Chemistry 417 Computer Science 601 Current Affairs 1,274
1–4 of 11Auto-changing every 5s
Academic Subjects
Physics9th Class 248
View All Academic Classes
Mock Tests
Quick Test (20 Q) Full Mock Test
Practiced MCQs0 / 601