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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
101
Computer Science Medium Uploaded: 25 Jun 2026

Which protocol is commonly used to create a secure and encrypted communication channel over the Internet?

  • AHTTPS (SSL/TLS)
  • BFTP
  • CDHCP
  • DTelnet
102
Computer Science Medium Uploaded: 25 Jun 2026

What is the main purpose of a Firewall in a computer network?

  • ATo prevent unauthorized access
  • BTo remove all viruses from a computer
  • CTo increase internet speed
  • DTo store network Data
103
Computer Science Medium Uploaded: 25 Jun 2026

Which bus is primarily responsible for transferring data between the CPU and memory?

  • AAddress Bus
  • BExpansion Bus
  • CControl Bus
  • DData Bus
104
Computer Science Medium Uploaded: 25 Jun 2026

Which sorting algorithm generally provides the best average-case performance for large datasets?

  • AQuick Sort
  • BMerge Sort
  • CBubble Sort
  • DSelection Sort
105
Computer Science Medium Uploaded: 25 Jun 2026

Which memory type is most commonly used to store firmware in embedded systems?

  • ARAM
  • BVirtual Memory
  • CCache Memory
  • DROM
106
Computer Science Medium Uploaded: 25 Jun 2026

Who co-invented the World Wide Web (WWW) alongside Robert Cailliau?

  • ATom Berners
  • BMark Zuckerberg
  • CTim Berners-Lee
  • DBill Gates
107
Computer Science Medium Uploaded: 25 Jun 2026

Who is widely regarded as the father of Computer Science?

  • AJohn von Neumann
  • BAlan Turing
  • CCharles Babbage
  • DBill Gates
108
Computer Science Medium Uploaded: 22 Jun 2026

What is the default port number for HTTPS?

  • A21
  • B25
  • C80
  • D443
109
Computer Science Medium Uploaded: 20 Jun 2026

Which programming language is commonly used for data analysis and machine learning?

  • ACOBOL
  • BPython
  • CPascal
  • DFortran
110
Computer Science Medium Uploaded: 20 Jun 2026

What is the main purpose of a database management system (DBMS)?

  • ACreate hardware
  • BManage and organize data
  • CDesign websites
  • DControl printers