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Computer Networking MCQs

Study important topics of Computer Networking step by step with our well-organized Networking MCQs at JobExams. These questions cover IP Addressing, OSI Model, TCP/IP, network devices (like routers and switches), types of networks (LAN, WAN, MAN), protocols, and commands like ipconfig and many more. These MCQs are very helpful for IT-related job tests such as PPSC, NTS, FPSC, SPSC, BPSC, CSS, and for students preparing for computer science exams and interviews.

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1 Computer Networking MCQs

Which file format conversions are typically handled at the Presentation Layer?

  • MP3 to WAV
  • .zip to .rar
  • JPEG to PNG
  • All of the above
0 Comments
Correct Answer: D. All of the above

Explanation: The Presentation Layer of the OSI model plays a key role in data translation, which ... Read More Details

2 Computer Networking MCQs

Compression of data to reduce transmission size is performed at the:

  • Application Layer
  • Network Layer
  • Presentation Layer
  • Transport Layer
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Correct Answer: C. Presentation Layer

Explanation: The Presentation Layer of the OSI model is responsible for compressing data to reduce its ... Read More Details

3 Computer Networking MCQs

Data encryption before transmission and decryption after reception occurs at which OSI layer?

  • Session Layer
  • Network Layer
  • Transport Layer
  • Presentation Layer
0 Comments
Correct Answer: D. Presentation Layer

Explanation: The Presentation Layer is the sixth layer in the OSI model. It is mainly responsible ... Read More Details

4 Computer Networking MCQs

Which of the following is an example of data translation handled by the Presentation Layer?

  • IP addressing
  • Port allocation
  • Converting EBCDIC to ASCII
  • Creating HTML code
0 Comments
Correct Answer: C. Converting EBCDIC to ASCII

Explanation: The Presentation Layer is the 6th layer of the OSI model and plays a key ... Read More Details

5 Computer Networking MCQs

What is the main function of the Presentation Layer in the OSI model?

  • Routing and switching
  • Data encryption, compression, and translation
  • Physical signal transmission
  • Error control
0 Comments
Correct Answer: B. Data encryption, compression, and translation

Explanation: The Presentation Layer is the 6th layer of the OSI (Open Systems Interconnection) Model. Its ... Read More Details

6 Computer Networking MCQs

Which of the following is NOT a function of the Session Layer?

  • Session termination
  • Dialog control
  • Address resolution
  • Synchronization
0 Comments
Correct Answer: C. Address resolution

Explanation: The Session Layer (Layer 5 of the OSI Model) is responsible for managing communication sessions ... Read More Details

7 Computer Networking MCQs

A "checkpoint" or synchronization point in a session is used to:

  • Start a firewall
  • Save the state of communication
  • Format data
  • Configure routing tables
0 Comments
Correct Answer: B. Save the state of communication

Explanation: In the Session Layer (Layer 5 of the OSI Model), a checkpoint or synchronization point ... Read More Details

8 Computer Networking MCQs

Which layer ensures two devices can communicate in either half-duplex or full-duplex mode?

  • Application Layer
  • Presentation Layer
  • Transport Layer
  • Session Layer
0 Comments
Correct Answer: D. Session Layer

Explanation: The Session Layer (Layer 5 of the OSI model) is responsible for managing dialogs between ... Read More Details

9 Computer Networking MCQs

What happens if a session is interrupted?

  • It is ignored by the session layer
  • The session layer re-establishes or resumes the session
  • The data is discarded
  • Data is re-routed
0 Comments
Correct Answer: B. The session layer re-establishes or resumes the session

Explanation: If a session is interrupted during communication, the Session Layer (Layer 5 of the OSI ... Read More Details

10 Computer Networking MCQs

Which of the following protocols is associated with the Session Layer?

  • TCP
  • DNS
  • NetBIOS
  • IP
0 Comments
Correct Answer: C. NetBIOS

Explanation: NetBIOS is a protocol that operates at the Session Layer (Layer 5) of the OSI ... Read More Details

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