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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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What is a deadlock in an operating system?

  • AA memory leak
  • BA security attack
  • CA situation where processes wait indefinitely for resources
  • DA file corruption error
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What is the purpose of an index in a database?

  • AReduce security
  • BImprove query performance
  • CStore backups
  • DEncrypt records
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Which topology provides the highest fault tolerance?

  • ABus
  • BStar
  • CRing
  • DMesh
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Which memory is fastest among the following?

  • AHard Disk
  • BRAM
  • CCache Memory
  • DROM
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Which algorithm is commonly used to find the shortest path in a weighted graph?

  • ABubble Sort
  • BDijkstra's Algorithm
  • CBinary Search
  • DDepth First Search
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What is polymorphism in object-oriented programming?

  • AData hiding
  • BAbility of an object to take multiple forms
  • CMemory allocation
  • DDatabase indexing
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Which OSI layer is responsible for end-to-end communication?

  • ANetwork Layer
  • BData Link Layer
  • CTransport Layer
  • DSession Layer
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What is the primary purpose of normalization in relational databases?

  • AIncrease redundancy
  • BReduce redundancy
  • CIncrease storage space
  • DImprove graphics rendering
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Which data structure is most suitable for implementing recursion?

  • AQueue
  • BArray
  • CStack
  • DHeap
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What is the purpose of a firewall?

  • AIncrease processor speed
  • BProtect networks from unauthorized access
  • CStore files permanently
  • DCompress data