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CSS MCQs

Civil Superior Services — Complete MCQ Bank

53 Questions
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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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21
Computer Science Medium

What is artificial intelligence?

  • AComputer hardware
  • BSimulation of human intelligence by machines
  • CNetwork design
  • DDatabase storage
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Correct Answer: Option B — Simulation of human intelligence by machines
Explanation: Artificial Intelligence enables machines to perform tasks requiring human-like reasoning and learning.
Submitted by: PaperMCQs
22
Computer Science Medium

Which database operation removes a table completely?

  • ADELETE
  • BREMOVE
  • CDROP
  • DCLEAR
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Correct Answer: Option C — DROP
Explanation: DROP permanently removes an entire database object including structure and data.
Submitted by: PaperMCQs
23
Computer Science Medium

Which cyberattack encrypts files and demands payment?

  • ASpyware
  • BRansomware
  • CAdware
  • DTrojan
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Correct Answer: Option B — Ransomware
Explanation: Ransomware locks or encrypts data and demands a ransom for restoration.
Submitted by: PaperMCQs
24
Computer Science Medium

What is multitasking in an operating system?

  • AUsing multiple monitors
  • BRunning multiple processes concurrently
  • CInstalling multiple OS
  • DUsing many files
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Correct Answer: Option B — Running multiple processes concurrently
Explanation: Multitasking enables an operating system to execute multiple programs seemingly at the same time.
Submitted by: PaperMCQs
25
Computer Science Medium

What is a database schema?

  • ABackup file
  • BStructure of a database
  • CNetwork device
  • DProgramming language
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Correct Answer: Option B — Structure of a database
Explanation: A database schema defines tables, fields, relationships, and constraints.
Submitted by: PaperMCQs
26
Computer Science Hard

Which algorithm technique divides a problem into smaller subproblems?

  • AGreedy
  • BDivide and Conquer
  • CBrute Force
  • DBacktracking
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Correct Answer: Option B — Divide and Conquer
Explanation: Divide and Conquer breaks a problem into smaller parts, solves them independently, and combines results.
Submitted by: PaperMCQs
27
Computer Science Medium

Which layer of OSI handles physical transmission of bits?

  • ANetwork
  • BTransport
  • CPhysical
  • DSession
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Correct Answer: Option C — Physical
Explanation: The Physical Layer is responsible for transmitting raw bits over communication channels.
Submitted by: PaperMCQs
28
Computer Science Medium

Which programming language is primarily used for Android development?

  • ASwift
  • BKotlin
  • CRuby
  • DPHP
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Correct Answer: Option B — Kotlin
Explanation: Kotlin is Google's preferred language for Android app development because of its modern syntax and safety features.
Submitted by: PaperMCQs
29
Computer Science Medium

Which protocol is used to securely transfer files over SSH?

  • AFTP
  • BTFTP
  • CSFTP
  • DSMTP
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Correct Answer: Option C — SFTP
Explanation: SFTP operates over SSH and provides encrypted file transfer capabilities, making it more secure than traditional FTP for transmitting sensitive data.
Submitted by: PaperMCQs
30
Computer Science Medium

Which Excel chart is best for showing trends over time?

  • APie Chart
  • BLine Chart
  • CScatter Plot
  • DRadar Chart
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Correct Answer: Option B — Line Chart
Explanation: Line charts effectively display trends and changes across time periods, making them useful for analysis.
Submitted by: PaperMCQs
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