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Computer Science MCQs

MCQs on Programming, Networking, Database and OS

601 Questions Subject Test
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501
Hard nts Uploaded: 23 Aug 2026

What is the purpose of cookies in web browsing?

  • A To store user data for websites
  • B To manage hardware drivers
  • C To compress images
  • D To speed up the CPU
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502
Medium css fpsc Uploaded: 20 Jun 2026

What is artificial intelligence?

  • A Computer hardware
  • B Simulation of human intelligence by machines
  • C Network design
  • D Database storage
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503
Easy pms Uploaded: 09 Aug 2026

What is the purpose of an algorithm?

  • A Design graphics
  • B Provide step-by-step instructions to solve a problem
  • C Store data permanently
  • D Connect hardware
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504
Medium fpsc Uploaded: 13 Aug 2026

Which of the following is a function of the 'Mail Merge' feature in Word?

  • A Checking spelling
  • B Creating personalized letters for multiple recipients
  • C Formatting text
  • D Inserting images
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505
Medium ppsc Uploaded: 07 Aug 2026

What is the function of RAM in a computer?

  • A Temporarily store data for quick access by the CPU
  • B Display images on the screen
  • C Connect to the internet
  • D Permanently store the operating system
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506
Medium fpsc Uploaded: 23 Aug 2026

Which loop is guaranteed to execute at least once?

  • A For loop
  • B Do-while loop
  • C Nested loop
  • D While loop
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507
Easy ppsc nts Uploaded: 20 Jun 2026

Which search algorithm checks each element sequentially?

  • A Binary Search
  • B Linear Search
  • C Interpolation Search
  • D Hash Search
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508
Easy nts Uploaded: 13 Aug 2026

What is the purpose of a 'patch' in software?

  • A Format a disk
  • B Create a backup
  • C Fix bugs or security vulnerabilities in software
  • D Add new hardware
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509
Easy fpsc Uploaded: 23 Aug 2026

What is the function of an operating system's process scheduler?

  • A To manage network connections
  • B To store files
  • C To display graphics
  • D To determine which process runs on the CPU next
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510
Easy fpsc Uploaded: 13 Aug 2026

What is a DDoS attack?

  • A A programming technique
  • B An attack that overwhelms a system with traffic to disrupt service
  • C A backup method
  • D A type of encryption
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511
Medium nts Uploaded: 07 Aug 2026

What is the function of an antivirus program?

  • A Create documents
  • B Increase internet speed
  • C Format hard drives
  • D Detect and remove malicious software
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512
Hard css Uploaded: 09 Aug 2026

Which of the following is a characteristic of a 'supercomputer'?

  • A Used only for gaming
  • B Limited processing capability
  • C Small size for portability
  • D Extremely high processing power for complex calculations
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513
Easy fpsc Uploaded: 13 Aug 2026

Which storage device uses flash memory?

  • A Floppy Disk
  • B CD-ROM
  • C Solid State Drive
  • D Hard Disk Drive
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514
Medium css Uploaded: 23 Aug 2026

Which of the following is an example of a spreadsheet application?

  • A Adobe Photoshop
  • B Google Chrome
  • C Microsoft Word
  • D Microsoft Excel
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515
Medium css pms fpsc ppsc nts Uploaded: 22 Jun 2026

What is the default port number for HTTPS?

  • A 21
  • B 25
  • C 80
  • D 443
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516
Medium fpsc nts Uploaded: 20 Jun 2026

What is the purpose of a checksum?

  • A Compress data
  • B Verify data integrity
  • C Increase speed
  • D Encrypt files
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517
Medium pms Uploaded: 09 Aug 2026

What is the function of a compiler?

  • A Manage memory
  • B Store data
  • C Connect to internet
  • D Convert source code to machine code
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518
Hard css Uploaded: 13 Aug 2026

What is the shortcut key to save a document?

  • A Ctrl+N
  • B Ctrl+S
  • C Ctrl+O
  • D Ctrl+P
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519
Easy fpsc Uploaded: 07 Aug 2026

Which data structure is most efficient for implementing a priority queue?

  • A Simple Linked List
  • B Stack
  • C Array
  • D Heap
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520
Medium css Uploaded: 23 Aug 2026

Which of these is an example of an interpreted language?

  • A C
  • B C++
  • C Java
  • D Python
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