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Computer Science MCQs

MCQs on Programming, Networking, Database and OS

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Filter: All Exams css pms fpsc ppsc nts | All Easy Medium Hard
561
Easy fpsc nts Uploaded: 20 Jun 2026

What is the role of DNS in networking?

  • A Assign IP addresses
  • B Translate domain names to IP addresses
  • C Transfer files
  • D Encrypt network traffic
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562
Easy fpsc Uploaded: 13 Aug 2026

What is the purpose of a flowchart?

  • A Visually represent the steps of an algorithm
  • B Manage databases
  • C Compile code
  • D Store data
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563
Easy ppsc Uploaded: 23 Aug 2026

Which of the following best describes blockchain technology?

  • A A programming language
  • B A local storage device
  • C A type of antivirus software
  • D A decentralized, distributed ledger system
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564
Hard css Uploaded: 13 Aug 2026

Which number system has a base of 8?

  • A Hexadecimal
  • B Decimal
  • C Octal
  • D Binary
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565
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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566
Hard css Uploaded: 09 Aug 2026

What is the purpose of 'RAID' in storage systems?

  • A Encrypt data
  • B Combine multiple disks for redundancy and performance
  • C Display graphics
  • D Compress files
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567
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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568
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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569
Easy ppsc nts Uploaded: 20 Jun 2026

What is cloud storage?

  • A Local disk storage
  • B Storage accessible via the internet
  • C RAM allocation
  • D CPU cache
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570
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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571
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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572
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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573
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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574
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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575
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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576
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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577
Easy nts Uploaded: 07 Aug 2026

Which device is used to input handwritten text into a computer?

  • A Printer
  • B Monitor
  • C Scanner
  • D Speaker
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578
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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579
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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580
Easy nts Uploaded: 07 Aug 2026

Which of the following is a common cause of a memory leak in programming?

  • A Writing comments in code
  • B Using loops
  • C Failing to release unused memory
  • D Using too many variables
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