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Computer Science MCQs

MCQs on Programming, Networking, Database and OS

601 Questions Subject Test
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401
Medium nts Uploaded: 13 Aug 2026

What is the file extension for a PowerPoint presentation?

  • A .doc
  • B .xls
  • C .ppt
  • D .txt
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402
Hard css Uploaded: 07 Aug 2026

Which of these is a valid file extension for an image?

  • A .doc
  • B .jpg
  • C .mp3
  • D .exe
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403
Medium fpsc Uploaded: 09 Aug 2026

What does 'API' stand for?

  • A Automated Program Interface
  • B Application Process Integration
  • C Application Programming Interface
  • D Application Protocol Interface
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404
Medium nts Uploaded: 13 Aug 2026

What is the full form of RAM?

  • A Random Access Memory
  • B Random Allocation Memory
  • C Read Access Memory
  • D Read Allocation Memory
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405
Medium fpsc Uploaded: 23 Aug 2026

What is the purpose of a backup?

  • A To create a copy of data for recovery
  • B To speed up the computer
  • C To install software
  • D To delete unnecessary files
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406
Easy fpsc ppsc nts Uploaded: 18 Jun 2026

What does CPU stand for?

  • A Central Processing Unit
  • B Central Program Unit
  • C Computer Processing Unit
  • D Central Processor Utility
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407
Medium fpsc nts Uploaded: 20 Jun 2026

Which Access key uniquely identifies each record?

  • A Foreign Key
  • B Primary Key
  • C Composite Key
  • D Candidate Key
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408
Easy nts Uploaded: 13 Aug 2026

What is the purpose of data backup?

  • A Increase processing speed
  • B Encrypt files
  • C Compress storage
  • D Protect against data loss
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409
Easy nts Uploaded: 09 Aug 2026

Which memory is non-volatile?

  • A Cache
  • B RAM
  • C ROM
  • D Register
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410
Easy pms Uploaded: 13 Aug 2026

Which of the following is the fastest memory?

  • A Hard Disk
  • B ROM
  • C Cache Memory
  • D RAM
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411
Medium ppsc Uploaded: 07 Aug 2026

Which of the following is an example of system software?

  • A MS Word
  • B Operating System
  • C Google Chrome
  • D Adobe Photoshop
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412
Medium pms Uploaded: 23 Aug 2026

Which data structure follows the FIFO principle?

  • A Stack
  • B Graph
  • C Queue
  • D Tree
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413
Easy nts Uploaded: 20 Jun 2026

Which number system is directly understood by a computer?

  • A Decimal
  • B Binary
  • C Octal
  • D Hexadecimal
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414
Hard pms Uploaded: 13 Aug 2026

What is a binary tree?

  • A A tree with unlimited children per node
  • B A type of queue
  • C A linear structure
  • D A tree where each node has at most two children
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415
Medium fpsc Uploaded: 23 Aug 2026

What is a nibble in computing?

  • A A group of 4 bits
  • B A group of 2 bits
  • C A group of 16 bits
  • D A group of 8 bits
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416
Medium fpsc nts Uploaded: 20 Jun 2026

Which Excel function counts non-empty cells?

  • A COUNT()
  • B COUNTA()
  • C COUNTIF()
  • D SUM()
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417
Medium css Uploaded: 09 Aug 2026

What is the primary purpose of cloud computing?

  • A Repair hardware
  • B Store and access data over the internet
  • C Design websites
  • D Print documents
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418
Medium pms Uploaded: 13 Aug 2026

Which of the following best describes 'cloud SaaS'?

  • A Hardware sold as a product
  • B A network cable standard
  • C A type of virus
  • D Software delivered over the internet on a subscription basis
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419
Hard css Uploaded: 07 Aug 2026

What is the purpose of an operating system's file system?

  • A Increase internet speed
  • B Design graphics
  • C Organize and manage data storage on a device
  • D Compile source code
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420
Medium css Uploaded: 23 Aug 2026

Which of the following is a popular web browser?

  • A Google Chrome
  • B WinRAR
  • C Adobe Reader
  • D MS Word
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