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FPSC MCQs

Federal Public Service Commission ā€” Complete MCQ Bank

66 Questions
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How to prepare for FPSC

FPSC recruitment tests assess subject knowledge, general ability and job-related competence for federal government positions across Pakistan.

General KnowledgeCurrent AffairsEnglishJob-related Subjects
Read the official syllabus first, then combine subject-specific revision with timed mixed-question practice.
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All Subjects Biology Chemistry Computer Science Current Affairs English Everyday Science General Knowledge Islamic Studies Mathematics Pakistan Studies Physics
51
Computer Science Medium

Which OSI layer is responsible for end-to-end communication?

  • ANetwork Layer
  • BData Link Layer
  • CTransport Layer
  • DSession Layer
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Correct Answer: Option C ā€” Transport Layer
Explanation: The Transport Layer provides end-to-end communication, reliability, flow control, and error handling using protocols such as TCP and UDP.
Submitted by: PaperMCQs
52
Computer Science Medium

Which sorting algorithm repeatedly selects the smallest element and places it in the correct position?

  • AMerge Sort
  • BQuick Sort
  • CSelection Sort
  • DHeap Sort
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Correct Answer: Option C ā€” Selection Sort
Explanation: Selection Sort repeatedly finds the minimum element from the unsorted portion and places it at the beginning. It is simple but inefficient for large datasets.
Submitted by: PaperMCQs
53
Computer Science Medium

What is the primary purpose of normalization in relational databases?

  • AIncrease redundancy
  • BReduce redundancy
  • CIncrease storage space
  • DImprove graphics rendering
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Correct Answer: Option B ā€” Reduce redundancy
Explanation: Normalization organizes data into structured tables to minimize redundancy and dependency issues. It improves data integrity, reduces update anomalies, and makes databases easier to maintain and scale in real-world applications.
Submitted by: PaperMCQs
54
Computer Science Medium

Which scheduling algorithm gives each process a fixed time slice?

  • AFCFS
  • BRound Robin
  • CShortest Job First
  • DPriority Scheduling
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Correct Answer: Option B ā€” Round Robin
Explanation: Round Robin scheduling assigns a fixed time quantum to each process. If a process does not complete within its allotted time, it is moved to the end of the queue. This approach improves fairness and responsiveness in time-sharing systems.
Submitted by: PaperMCQs
55
Computer Science Medium

What is the purpose of a firewall?

  • AIncrease processor speed
  • BProtect networks from unauthorized access
  • CStore files permanently
  • DCompress data
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Correct Answer: Option B ā€” Protect networks from unauthorized access
Explanation: A firewall monitors and filters network traffic according to predefined security rules. It acts as a barrier between trusted and untrusted networks, helping prevent unauthorized access and cyberattacks.
Submitted by: PaperMCQs
56
Computer Science Easy

Which protocol translates domain names into IP addresses?

  • AHTTP
  • BFTP
  • CDNS
  • DSSH
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Correct Answer: Option C ā€” DNS
Explanation: The Domain Name System (DNS) converts human-readable domain names into numerical IP addresses. This translation allows users to access websites using easy-to-remember names instead of complex numeric addresses.
Submitted by: PaperMCQs
57
Computer Science Medium

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

  • AO(n)
  • BO(log n)
  • CO(nĀ²)
  • DO(1)
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Correct Answer: Option B ā€” O(log n)
Explanation: Binary Search repeatedly divides a sorted dataset into halves until the target value is found or determined absent. Because the search space is halved each step, the worst-case time complexity is logarithmic, O(log n).
Submitted by: PaperMCQs
58
Computer Science Medium

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

  • ATransport Layer
  • BNetwork Layer
  • CSession Layer
  • DPresentation Layer
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Correct Answer: Option B ā€” Network Layer
Explanation: The Network Layer is responsible for logical addressing and routing of packets between networks. Protocols such as IP operate at this layer, enabling data to travel across interconnected networks efficiently.
Submitted by: PaperMCQs
59
Computer Science Easy

Which device is responsible for connecting different networks together?

  • ASwitch
  • BHub
  • CRouter
  • DRepeater
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Correct Answer: Option C ā€” Router
Explanation: A router connects multiple networks and forwards data packets between them based on IP addresses. It determines the most efficient path for data transmission and plays a critical role in Internet communication.
Submitted by: PaperMCQs
60
Computer Science Easy

Which protocol is primarily used for sending emails over the Internet?

  • AHTTP
  • BSMTP
  • CFTP
  • DDNS
Permalink
Correct Answer: Option B ā€” SMTP
Explanation: Simple Mail Transfer Protocol (SMTP) is the standard protocol used for sending email messages between servers and from clients to servers. It works alongside protocols such as POP3 and IMAP, which are used for receiving emails.
Submitted by: PaperMCQs
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