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CSS MCQs

Civil Superior Services — Complete MCQ Bank

53 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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31
Computer Science Medium

What is a macro in MS Office?

  • ADatabase
  • BAutomated task sequence
  • CChart type
  • DNetwork protocol
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Correct Answer: Option B — Automated task sequence
Explanation: A macro automates repetitive tasks by storing commands and actions that can be replayed later.
Submitted by: PaperMCQs
32
Computer Science Medium

Which Excel reference remains fixed when copied?

  • ARelative Reference
  • BMixed Reference
  • CAbsolute Reference
  • DDynamic Reference
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Correct Answer: Option C — Absolute Reference
Explanation: Absolute references use dollar signs and do not change when formulas are copied to other cells.
Submitted by: PaperMCQs
33
Computer Science Medium

What does VLOOKUP do in Excel?

  • ACreates charts
  • BSearches values vertically
  • CDeletes rows
  • DSorts data
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Correct Answer: Option B — Searches values vertically
Explanation: VLOOKUP searches for a value in the first column of a table and returns related information from another column.
Submitted by: PaperMCQs
34
Computer Science Medium

Which software development model follows a sequential approach?

  • AAgile
  • BScrum
  • CWaterfall
  • DDevOps
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Correct Answer: Option C — Waterfall
Explanation: The Waterfall model progresses through defined phases in sequence and is suitable for stable requirements.
Submitted by: PaperMCQs
35
Computer Science Hard

Which normal form eliminates transitive dependencies?

  • AFirst Normal Form
  • BSecond Normal Form
  • CThird Normal Form
  • DBoyce-Codd Normal Form
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Correct Answer: Option C — Third Normal Form
Explanation: Third Normal Form removes transitive dependencies and improves database consistency.
Submitted by: PaperMCQs
36
Computer Science Hard

Which programming paradigm focuses on functions and immutability?

  • AProcedural Programming
  • BObject-Oriented Programming
  • CFunctional Programming
  • DAssembly Programming
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Correct Answer: Option C — Functional Programming
Explanation: Functional programming emphasizes pure functions, immutability, and declarative problem solving.
Submitted by: PaperMCQs
37
Computer Science Medium

What is the purpose of a foreign key?

  • AStore passwords
  • BIdentify duplicate records
  • CCreate relationships between tables
  • DEncrypt database contents
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Correct Answer: Option C — Create relationships between tables
Explanation: Foreign keys enforce relationships between tables and maintain referential integrity.
Submitted by: PaperMCQs
38
Computer Science Medium

Which of the following is a NoSQL database?

  • AOracle
  • BMySQL
  • CMongoDB
  • DPostgreSQL
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Correct Answer: Option C — MongoDB
Explanation: MongoDB is a document-oriented NoSQL database designed for flexible and scalable data storage.
Submitted by: PaperMCQs
39
Computer Science Hard

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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Correct Answer: Option C — A situation where processes wait indefinitely for resources
Explanation: Deadlock occurs when processes are permanently blocked waiting for resources held by one another.
Submitted by: PaperMCQs
40
Computer Science Medium

What is the purpose of an index in a database?

  • AReduce security
  • BImprove query performance
  • CStore backups
  • DEncrypt records
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Correct Answer: Option B — Improve query performance
Explanation: Indexes improve retrieval speed by allowing databases to locate records efficiently.
Submitted by: PaperMCQs
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