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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
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Computer Science Medium Uploaded: 09 Aug 2026

Which of these is a type of computer virus?

  • AFirewall
  • BTrojan Horse
  • CAntivirus
  • DRouter
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Computer Science Medium Uploaded: 09 Aug 2026

Which device is used to convert digital signals to analog and vice versa?

  • ARouter
  • BSwitch
  • CModem
  • DHub
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Computer Science Easy Uploaded: 09 Aug 2026

Who is known as the father of computers?

  • AJohn von Neumann
  • BCharles Babbage
  • CBill Gates
  • DAlan Turing
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Computer Science Hard Uploaded: 07 Aug 2026

What is the primary function of DHCP in networking?

  • AAutomatically assign IP addresses to devices
  • BCompress data packets
  • CEncrypt network traffic
  • DBlock unauthorized websites
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Computer Science Easy Uploaded: 07 Aug 2026

What is the purpose of a subnet mask in networking?

  • AIncrease internet speed
  • BStore website content
  • CDivide an IP network into smaller sub-networks
  • DEncrypt data transmission
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Computer Science Medium Uploaded: 07 Aug 2026

Which of the following is an example of a NoSQL database?

  • APostgreSQL
  • BOracle
  • CMongoDB
  • DMySQL
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Computer Science Hard Uploaded: 07 Aug 2026

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

  • AIncrease internet speed
  • BDesign graphics
  • COrganize and manage data storage on a device
  • DCompile source code
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Computer Science Hard Uploaded: 07 Aug 2026

Which of the following is a common file compression format?

  • ADOC
  • BZIP
  • CPDF
  • DEXE
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Computer Science Easy Uploaded: 07 Aug 2026

What is the full form of CPU cache 'L1'?

  • ALevel 1 Cache
  • BLocal 1 Cache
  • CLayer 1 Cache
  • DLink 1 Cache
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Computer Science Medium Uploaded: 07 Aug 2026

Which layer of the OSI model handles data encryption and compression?

  • APhysical Layer
  • BTransport Layer
  • CPresentation Layer
  • DSession Layer