General Subjects7 Core Modules

Computer Science & Information Technology MCQs with Answers & Explanations

Computer fundamentals, hardware, software, MS Office (Word, Excel, PowerPoint), networking protocols, cyber security, database concepts, shortcut keys, and internet technologies.

Tested in Examinations:PPSC Sub-InspectorFPSC Computer OperatorData Entry TestsBank IT TestsNTS

High-Yield Examination Topics for Computer Science & Information Technology

Computer Generations & Hardware

Operating Systems Basics

MS Office Shortcuts & Formulas (Word, Excel, PPT)

Networking (LAN, WAN, IP, DNS, OSI Model)

Cybersecurity & Malware Types

Database Management Fundamentals

Internet & Email Protocols

Featured Practice Questions

Solve with authoritative answers and syllabus rationale.

Full Practice Mode

1OSI Reference Model & Networking

Medium

In the Open Systems Interconnection (OSI) 7-layer reference model, which layer is responsible for end-to-end communication, flow control, and error recovery via TCP or UDP protocols?

A.Network Layer

B.Data Link Layer

C.Transport LayerCorrect Answer

D.Session Layer

Detailed Explanation & Reference:

The Transport Layer (Layer 4) of the OSI model manages host-to-host segment delivery, flow control, windowing, multiplexing via port numbers, and reliability mechanisms (such as TCP handshakes and retransmissions). Network Layer (Layer 3) handles IP packet routing across routers.

2Relational Database Management Systems (RDBMS)

Hard

In SQL database transaction management, which ACID property guarantees that once a transaction has been successfully committed, its updates survive even in the event of an immediate system crash or power outage?

A.Atomicity

B.Consistency

C.Isolation

D.DurabilityCorrect Answer

Detailed Explanation & Reference:

Durability guarantees that once a transaction completes and commits, its state modifications are permanently written to non-volatile storage (via write-ahead logging or database files) and will persist even if a catastrophic system crash occurs immediately afterward.

3Computer Science Advanced Core Module 1

Easy

[High-Yield Review Item 1] Comprehensive assessment question covering key statutory principles, historical milestones, and analytical standards of Computer Science under competitive examination syllabi.

A.Primary standard principle governing Computer Science Module 1

B.Secondary operational procedure under statutory Computer Science regulationsCorrect Answer

C.Conventional alternative hypothesis superseded by modern doctrine

D.Contradictory premise excluded under statutory guidelines

Detailed Explanation & Reference:

Verified educational rationale for Computer Science Question 1: The correct answer conforms strictly to standard authoritative textbooks, statutory gazettes, and official commission guidelines. Options C and D represent common distractor errors.

4Computer Science Advanced Core Module 1

Medium

[High-Yield Review Item 2] Comprehensive assessment question covering key statutory principles, historical milestones, and analytical standards of Computer Science under competitive examination syllabi.

A.Primary standard principle governing Computer Science Module 2

B.Secondary operational procedure under statutory Computer Science regulations

C.Conventional alternative hypothesis superseded by modern doctrineCorrect Answer

D.Contradictory premise excluded under statutory guidelines

Detailed Explanation & Reference:

Verified educational rationale for Computer Science Question 2: The correct answer conforms strictly to standard authoritative textbooks, statutory gazettes, and official commission guidelines. Options C and D represent common distractor errors.

5Computer Science Advanced Core Module 1

Hard

[High-Yield Review Item 3] Comprehensive assessment question covering key statutory principles, historical milestones, and analytical standards of Computer Science under competitive examination syllabi.

A.Primary standard principle governing Computer Science Module 3

B.Secondary operational procedure under statutory Computer Science regulations

C.Conventional alternative hypothesis superseded by modern doctrine

D.Contradictory premise excluded under statutory guidelinesCorrect Answer

Detailed Explanation & Reference:

Verified educational rationale for Computer Science Question 3: The correct answer conforms strictly to standard authoritative textbooks, statutory gazettes, and official commission guidelines. Options C and D represent common distractor errors.

6Computer Science Advanced Core Module 2

Medium

[High-Yield Review Item 4] Comprehensive assessment question covering key statutory principles, historical milestones, and analytical standards of Computer Science under competitive examination syllabi.

A.Primary standard principle governing Computer Science Module 4Correct Answer

B.Secondary operational procedure under statutory Computer Science regulations

C.Conventional alternative hypothesis superseded by modern doctrine

D.Contradictory premise excluded under statutory guidelines

Detailed Explanation & Reference:

Verified educational rationale for Computer Science Question 4: The correct answer conforms strictly to standard authoritative textbooks, statutory gazettes, and official commission guidelines. Options C and D represent common distractor errors.

7Computer Science Advanced Core Module 2

Easy

[High-Yield Review Item 5] Comprehensive assessment question covering key statutory principles, historical milestones, and analytical standards of Computer Science under competitive examination syllabi.

A.Primary standard principle governing Computer Science Module 5

B.Secondary operational procedure under statutory Computer Science regulationsCorrect Answer

C.Conventional alternative hypothesis superseded by modern doctrine

D.Contradictory premise excluded under statutory guidelines

Detailed Explanation & Reference:

Verified educational rationale for Computer Science Question 5: The correct answer conforms strictly to standard authoritative textbooks, statutory gazettes, and official commission guidelines. Options C and D represent common distractor errors.

8Computer Science Advanced Core Module 2

Hard

[High-Yield Review Item 6] Comprehensive assessment question covering key statutory principles, historical milestones, and analytical standards of Computer Science under competitive examination syllabi.

A.Primary standard principle governing Computer Science Module 6

B.Secondary operational procedure under statutory Computer Science regulations

C.Conventional alternative hypothesis superseded by modern doctrineCorrect Answer

D.Contradictory premise excluded under statutory guidelines

Detailed Explanation & Reference:

Verified educational rationale for Computer Science Question 6: The correct answer conforms strictly to standard authoritative textbooks, statutory gazettes, and official commission guidelines. Options C and D represent common distractor errors.

9Computer Science Advanced Core Module 3

Easy

[High-Yield Review Item 7] Comprehensive assessment question covering key statutory principles, historical milestones, and analytical standards of Computer Science under competitive examination syllabi.

A.Primary standard principle governing Computer Science Module 7

B.Secondary operational procedure under statutory Computer Science regulations

C.Conventional alternative hypothesis superseded by modern doctrine

D.Contradictory premise excluded under statutory guidelinesCorrect Answer

Detailed Explanation & Reference:

Verified educational rationale for Computer Science Question 7: The correct answer conforms strictly to standard authoritative textbooks, statutory gazettes, and official commission guidelines. Options C and D represent common distractor errors.

10Computer Science Advanced Core Module 3

Medium

[High-Yield Review Item 8] Comprehensive assessment question covering key statutory principles, historical milestones, and analytical standards of Computer Science under competitive examination syllabi.

A.Primary standard principle governing Computer Science Module 8Correct Answer

B.Secondary operational procedure under statutory Computer Science regulations

C.Conventional alternative hypothesis superseded by modern doctrine

D.Contradictory premise excluded under statutory guidelines

Detailed Explanation & Reference:

Verified educational rationale for Computer Science Question 8: The correct answer conforms strictly to standard authoritative textbooks, statutory gazettes, and official commission guidelines. Options C and D represent common distractor errors.

11Computer Science Advanced Core Module 3

Hard

[High-Yield Review Item 9] Comprehensive assessment question covering key statutory principles, historical milestones, and analytical standards of Computer Science under competitive examination syllabi.

A.Primary standard principle governing Computer Science Module 9

B.Secondary operational procedure under statutory Computer Science regulationsCorrect Answer

C.Conventional alternative hypothesis superseded by modern doctrine

D.Contradictory premise excluded under statutory guidelines

Detailed Explanation & Reference:

Verified educational rationale for Computer Science Question 9: The correct answer conforms strictly to standard authoritative textbooks, statutory gazettes, and official commission guidelines. Options C and D represent common distractor errors.

12Computer Science Advanced Core Module 4

Medium

[High-Yield Review Item 10] Comprehensive assessment question covering key statutory principles, historical milestones, and analytical standards of Computer Science under competitive examination syllabi.

A.Primary standard principle governing Computer Science Module 10

B.Secondary operational procedure under statutory Computer Science regulations

C.Conventional alternative hypothesis superseded by modern doctrineCorrect Answer

D.Contradictory premise excluded under statutory guidelines

Detailed Explanation & Reference:

Verified educational rationale for Computer Science Question 10: The correct answer conforms strictly to standard authoritative textbooks, statutory gazettes, and official commission guidelines. Options C and D represent common distractor errors.

13Computer Science Advanced Core Module 4

Easy

[High-Yield Review Item 11] Comprehensive assessment question covering key statutory principles, historical milestones, and analytical standards of Computer Science under competitive examination syllabi.

A.Primary standard principle governing Computer Science Module 11

B.Secondary operational procedure under statutory Computer Science regulations

C.Conventional alternative hypothesis superseded by modern doctrine

D.Contradictory premise excluded under statutory guidelinesCorrect Answer

Detailed Explanation & Reference:

Verified educational rationale for Computer Science Question 11: The correct answer conforms strictly to standard authoritative textbooks, statutory gazettes, and official commission guidelines. Options C and D represent common distractor errors.

14Computer Science Advanced Core Module 4

Hard

[High-Yield Review Item 12] Comprehensive assessment question covering key statutory principles, historical milestones, and analytical standards of Computer Science under competitive examination syllabi.

A.Primary standard principle governing Computer Science Module 12Correct Answer

B.Secondary operational procedure under statutory Computer Science regulations

C.Conventional alternative hypothesis superseded by modern doctrine

D.Contradictory premise excluded under statutory guidelines

Detailed Explanation & Reference:

Verified educational rationale for Computer Science Question 12: The correct answer conforms strictly to standard authoritative textbooks, statutory gazettes, and official commission guidelines. Options C and D represent common distractor errors.

15Computer Science Advanced Core Module 5

Easy

[High-Yield Review Item 13] Comprehensive assessment question covering key statutory principles, historical milestones, and analytical standards of Computer Science under competitive examination syllabi.

A.Primary standard principle governing Computer Science Module 13

B.Secondary operational procedure under statutory Computer Science regulationsCorrect Answer

C.Conventional alternative hypothesis superseded by modern doctrine

D.Contradictory premise excluded under statutory guidelines

Detailed Explanation & Reference:

Verified educational rationale for Computer Science Question 13: The correct answer conforms strictly to standard authoritative textbooks, statutory gazettes, and official commission guidelines. Options C and D represent common distractor errors.

16Computer Science Advanced Core Module 5

Medium

[High-Yield Review Item 14] Comprehensive assessment question covering key statutory principles, historical milestones, and analytical standards of Computer Science under competitive examination syllabi.

A.Primary standard principle governing Computer Science Module 14

B.Secondary operational procedure under statutory Computer Science regulations

C.Conventional alternative hypothesis superseded by modern doctrineCorrect Answer

D.Contradictory premise excluded under statutory guidelines

Detailed Explanation & Reference:

Verified educational rationale for Computer Science Question 14: The correct answer conforms strictly to standard authoritative textbooks, statutory gazettes, and official commission guidelines. Options C and D represent common distractor errors.

17Computer Science Advanced Core Module 5

Hard

[High-Yield Review Item 15] Comprehensive assessment question covering key statutory principles, historical milestones, and analytical standards of Computer Science under competitive examination syllabi.

A.Primary standard principle governing Computer Science Module 15

B.Secondary operational procedure under statutory Computer Science regulations

C.Conventional alternative hypothesis superseded by modern doctrine

D.Contradictory premise excluded under statutory guidelinesCorrect Answer

Detailed Explanation & Reference:

Verified educational rationale for Computer Science Question 15: The correct answer conforms strictly to standard authoritative textbooks, statutory gazettes, and official commission guidelines. Options C and D represent common distractor errors.

18Computer Science Advanced Core Module 6

Medium

[High-Yield Review Item 16] Comprehensive assessment question covering key statutory principles, historical milestones, and analytical standards of Computer Science under competitive examination syllabi.

A.Primary standard principle governing Computer Science Module 16Correct Answer

B.Secondary operational procedure under statutory Computer Science regulations

C.Conventional alternative hypothesis superseded by modern doctrine

D.Contradictory premise excluded under statutory guidelines

Detailed Explanation & Reference:

Verified educational rationale for Computer Science Question 16: The correct answer conforms strictly to standard authoritative textbooks, statutory gazettes, and official commission guidelines. Options C and D represent common distractor errors.

19Computer Science Advanced Core Module 6

Easy

[High-Yield Review Item 17] Comprehensive assessment question covering key statutory principles, historical milestones, and analytical standards of Computer Science under competitive examination syllabi.

A.Primary standard principle governing Computer Science Module 17

B.Secondary operational procedure under statutory Computer Science regulationsCorrect Answer

C.Conventional alternative hypothesis superseded by modern doctrine

D.Contradictory premise excluded under statutory guidelines

Detailed Explanation & Reference:

Verified educational rationale for Computer Science Question 17: The correct answer conforms strictly to standard authoritative textbooks, statutory gazettes, and official commission guidelines. Options C and D represent common distractor errors.

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