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CSS MCQs

Civil Superior Services — Complete MCQ Bank

145 Questions
Exam Preparation Guide

How to prepare for CSS

CSS is Pakistan’s premier federal competitive examination. Strong preparation requires conceptual clarity, broad general knowledge and consistent practice across compulsory and optional areas.

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Combine daily MCQ practice with analytical reading, vocabulary building and regular revision of national and international affairs.
CSS preparation illustration
51
Computer Science Medium Uploaded: 13 Aug 2026

What is ransomware?

  • AA backup tool
  • BMalware that locks data and demands payment
  • CAn antivirus program
  • DFree software
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Computer Science Easy Uploaded: 13 Aug 2026

What is social engineering in cybersecurity?

  • AA hardware design technique
  • BManipulating people into revealing confidential information
  • CA network protocol
  • DA type of encryption
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Computer Science Easy Uploaded: 13 Aug 2026

Which of the following is a feature of OOP?

  • AGlobal variables only
  • BEncapsulation
  • CSequential execution only
  • DNo reusability
54
Computer Science Easy Uploaded: 13 Aug 2026

Convert binary 1010 to decimal.

  • A8
  • B10
  • C12
  • D14
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Computer Science Hard Uploaded: 13 Aug 2026

Which number system has a base of 8?

  • AHexadecimal
  • BDecimal
  • COctal
  • DBinary
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Computer Science Medium Uploaded: 13 Aug 2026

Which company developed the first web browser?

  • AApple
  • BGoogle
  • CCERN
  • DMicrosoft
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Computer Science Medium Uploaded: 13 Aug 2026

Who founded Microsoft?

  • ASteve Jobs
  • BBill Gates
  • CLarry Page
  • DMark Zuckerberg
58
Computer Science Medium Uploaded: 13 Aug 2026

Which of the following best describes 'hashing' in computer science?

  • AEncrypting data reversibly
  • BConverting data into a fixed-size value using a function
  • CBacking up data
  • DCompressing files
59
Computer Science Hard Uploaded: 09 Aug 2026

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

  • AEncrypt data
  • BCombine multiple disks for redundancy and performance
  • CDisplay graphics
  • DCompress files
60
Computer Science Hard Uploaded: 09 Aug 2026

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

  • AUsed only for gaming
  • BLimited processing capability
  • CSmall size for portability
  • DExtremely high processing power for complex calculations