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Computer Science MCQs

MCQs on Programming, Networking, Database and OS

306 Questions Subject Test
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281
Medium nts Uploaded: 23 Aug 2026

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

  • A To process graphics
  • B To connect to the internet
  • C To organize and manage data storage on disks
  • D To manage printers
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282
Medium fpsc Uploaded: 09 Aug 2026

What does IP stand for in networking?

  • A Internal Protocol
  • B Internet Provider
  • C Interconnected Protocol
  • D Internet Protocol
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283
Medium pms Uploaded: 13 Aug 2026

Which port is commonly used to connect a printer?

  • A USB
  • B Ethernet
  • C VGA
  • D HDMI
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284
Medium ppsc Uploaded: 23 Aug 2026

Which of the following best defines a Trojan horse in computing?

  • A A hardware upgrade
  • B A type of firewall
  • C A network cable
  • D Malware disguised as legitimate software
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285
Medium pms Uploaded: 07 Aug 2026

What is the base of the hexadecimal number system?

  • A 16
  • B 8
  • C 10
  • D 2
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286
Medium css Uploaded: 13 Aug 2026

Which keyword is used to define a function in Python?

  • A define
  • B func
  • C def
  • D function
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287
Medium css Uploaded: 23 Aug 2026

What is the purpose of a debugger?

  • A To manage networks
  • B To design databases
  • C To compile programs faster
  • D To identify and fix errors in code
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288
Medium fpsc Uploaded: 09 Aug 2026

Which of the following is not a programming language?

  • A Java
  • B Python
  • C Excel
  • D HTML
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289
Medium fpsc Uploaded: 13 Aug 2026

What is the main advantage of Agile methodology?

  • A No customer involvement
  • B Flexibility and iterative development
  • C Rigid planning
  • D Long release cycles
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290
Medium css Uploaded: 07 Aug 2026

In computer networks, what does the term 'bandwidth' refer to?

  • A The number of connected devices
  • B The maximum data transfer rate of a network
  • C The color of network cables
  • D The physical length of a cable
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291
Medium ppsc Uploaded: 23 Aug 2026

What is the full form of LAN?

  • A Long Area Network
  • B Linked Area Network
  • C Large Area Network
  • D Local Area Network
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292
Medium css fpsc Uploaded: 20 Jun 2026

What is the primary purpose of normalization in relational databases?

  • A Increase redundancy
  • B Reduce redundancy
  • C Increase storage space
  • D Improve graphics rendering
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293
Medium nts Uploaded: 13 Aug 2026

What is virtual memory?

  • A A type of cache
  • B Extra RAM chip
  • C Memory simulated using hard disk space
  • D A network storage
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294
Medium fpsc Uploaded: 23 Aug 2026

Which of the following is a strong password practice?

  • A Using the same password everywhere
  • B Using a mix of letters, numbers, and symbols
  • C Using your birthdate
  • D Using the word password
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295
Medium pms Uploaded: 09 Aug 2026

What is the main function of a switch in networking?

  • A Store data
  • B Compress files
  • C Provide internet access
  • D Connect devices within a LAN
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296
Medium ppsc Uploaded: 13 Aug 2026

What is a linked list?

  • A A sorting algorithm
  • B A collection of elements in contiguous memory
  • C A type of database
  • D A collection of nodes where each points to the next
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297
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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298
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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299
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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300
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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