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Computer Science MCQs

MCQs on Programming, Networking, Database and OS

601 Questions Subject Test
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581
Medium nts Uploaded: 23 Aug 2026

What is the primary function of RAM in a computer?

  • A Temporary storage for actively used data
  • B Permanent data storage
  • C Displaying graphics
  • D Processing calculations
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582
Medium fpsc ppsc Uploaded: 20 Jun 2026

What is the purpose of Slide Master in PowerPoint?

  • A Print slides
  • B Control overall slide design
  • C Insert videos
  • D Check spelling
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583
Hard ppsc Uploaded: 13 Aug 2026

Which of these is an object-oriented programming language?

  • A Machine Language
  • B Assembly
  • C Java
  • D C
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584
Medium css Uploaded: 09 Aug 2026

Which device is used to convert digital signals to analog and vice versa?

  • A Router
  • B Switch
  • C Modem
  • D Hub
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585
Easy css Uploaded: 13 Aug 2026

Which of the following is a feature of OOP?

  • A Global variables only
  • B Encapsulation
  • C Sequential execution only
  • D No reusability
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586
Hard ppsc Uploaded: 07 Aug 2026

What is the function of a firewall?

  • A Compile source code
  • B Monitor and control network traffic for security
  • C Increase processing speed
  • D Store large files
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587
Medium pms Uploaded: 23 Aug 2026

What is the full form of CPU?

  • A Central Program Unit
  • B Computer Processing Unit
  • C Central Processing Unit
  • D Control Processing Unit
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588
Easy fpsc Uploaded: 13 Aug 2026

What is the function of a motherboard?

  • A Store files permanently
  • B Display graphics only
  • C Provide internet access
  • D Connect and allow communication between hardware components
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589
Hard pms Uploaded: 23 Aug 2026

Which of the following is a server-side scripting language?

  • A JavaScript
  • B CSS
  • C PHP
  • D HTML
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590
Easy fpsc nts Uploaded: 20 Jun 2026

What is the full form of VPN?

  • A Virtual Private Network
  • B Verified Public Network
  • C Virtual Program Node
  • D Visual Private Node
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591
Medium ppsc Uploaded: 09 Aug 2026

Which of the following is an example of an interpreted programming language?

  • A Python
  • B C++
  • C Java
  • D C
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592
Easy css Uploaded: 13 Aug 2026

What is an interpreter?

  • A Translates and executes code line by line
  • B A database tool
  • C Compiles entire code at once
  • D A hardware component
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593
Hard pms Uploaded: 07 Aug 2026

Which of the following is used to connect a computer to the internet wirelessly?

  • A USB Cable
  • B Wi-Fi
  • C Ethernet Cable
  • D HDMI Cable
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594
Medium css pms fpsc ppsc nts Uploaded: 25 Jun 2026

What type of communication occurs between a computer and a keyboard?

  • A Full-Duplex
  • B Simplex
  • C Half-Duplex
  • D Multiplex
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595
Medium pms Uploaded: 23 Aug 2026

What is inheritance in object-oriented programming?

  • A A type of variable
  • B A class acquiring properties of another class
  • C A database key
  • D A type of loop
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596
Hard css fpsc Uploaded: 20 Jun 2026

What is a deadlock in an operating system?

  • A A memory leak
  • B A security attack
  • C A situation where processes wait indefinitely for resources
  • D A file corruption error
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597
Hard nts Uploaded: 13 Aug 2026

Which of the following is a compiled programming language?

  • A JavaScript
  • B PHP
  • C C++
  • D Python
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598
Easy pms Uploaded: 23 Aug 2026

What does SEO stand for?

  • A System Engine Optimization
  • B Search Engine Operation
  • C Software Engine Optimization
  • D Search Engine Optimization
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599
Medium pms Uploaded: 13 Aug 2026

What is a formula in Excel typically preceded by?

  • A A colon
  • B A question mark
  • C An equal sign
  • D A semicolon
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600
Medium ppsc Uploaded: 07 Aug 2026

Which of the following is a web browser?

  • A MS Excel
  • B Google Chrome
  • C MS Word
  • D MS Paint
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