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CSS MCQs

Civil Superior Services — Complete MCQ Bank

145 Questions
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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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141
Computer Science Medium Uploaded: 20 Jun 2026

What is encapsulation in object-oriented programming?

  • ACombining data and methods into a single unit
  • BCreating multiple classes
  • CExecuting parallel processes
  • DAllocating memory dynamically
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142
Computer Science Medium Uploaded: 20 Jun 2026

What is the time complexity of Binary Search in the worst case?

  • AO(n)
  • BO(log n)
  • CO(n²)
  • DO(1)
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143
Computer Science Medium Uploaded: 20 Jun 2026

Which layer of the OSI model is responsible for routing packets?

  • ATransport Layer
  • BNetwork Layer
  • CSession Layer
  • DPresentation Layer
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144
Computer Science Medium Uploaded: 20 Jun 2026

Which data structure follows the Last In First Out (LIFO) principle?

  • AQueue
  • BArray
  • CStack
  • DLinked List
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145
Computer Science Medium Uploaded: 18 Jun 2026

Which programming language is known as the "mother of all languages"?

  • APython
  • BJava
  • CC
  • DFORTRAN
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