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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

The Application Layer provides an interface between:

  • User and the network
  • Router and switch
  • MAC and IP
  • Server and database
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Correct Answer: A. User and the network

Explanation:

The Application Layer is the seventh and topmost layer of the OSI (Open Systems Interconnection) ... Read More Details

2 Computer Networking MCQs

Which of the following is NOT an Application Layer protocol?

  • SMTP
  • HTTP
  • DHCP
  • TCP
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Correct Answer: D. TCP

Explanation: In the OSI model, the Application Layer is the top layer (Layer 7). It provides ... Read More Details

3 Computer Networking MCQs

Which layer is responsible for services like file transfer, email, and network management?

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

Explanation: The Application Layer is the topmost layer (Layer 7) of the OSI model. It allows ... Read More Details

4 Computer Networking MCQs

DNS (Domain Name System) operates at which OSI layer?

  • Network Layer
  • Data Link Layer
  • Application Layer
  • Transport Layer
0 Comments
Correct Answer: C. Application Layer

Explanation: DNS (Domain Name System) operates at the Application Layer of the OSI model. This is ... Read More Details

5 Computer Networking MCQs

Which of the following protocols operates at the Application Layer?

  • IP
  • TCP
  • FTP
  • ARP
0 Comments
Correct Answer: C. FTP

Explanation: FTP (File Transfer Protocol) is a protocol that operates at the Application Layer of the ... Read More Details

6 Computer Networking MCQs

What is the primary function of the Application Layer in the OSI model?

  • File compression
  • Initiating data transmission from user-facing applications
  • Data routing and switching
  • Managing TCP sessions
0 Comments
Correct Answer: B. Initiating data transmission from user-facing applications

Explanation: The Application Layer is the 7th and topmost layer of the OSI model. Its main ... Read More Details

7 Computer Networking MCQs

Why is the Presentation Layer sometimes called the "translator" of the OSI model?

  • It translates between English and binary
  • It converts signals into light pulses
  • It ensures proper format, encoding, and readability of data
  • It determines IP routes
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Correct Answer: C. It ensures proper format, encoding, and readability of data

Explanation: The Presentation Layer is Layer 6 of the OSI model. It is often called the ... Read More Details

8 Computer Networking MCQs

Which of the following protocols/functions is associated with the Presentation Layer?

  • HTTP
  • SSL/TLS
  • IP
  • ARP
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Correct Answer: B. SSL/TLS

Explanation: SSL (Secure Sockets Layer) and TLS (Transport Layer Security) are protocols that work closely with ... Read More Details

9 Computer Networking MCQs

The Presentation Layer acts as a:

  • Data transmitter
  • Data organizer between Application and Session Layer
  • Error handler for lower layers
  • MAC address resolver
0 Comments
Correct Answer: B. Data organizer between Application and Session Layer

Explanation: The Presentation Layer in the OSI model acts as a data organizer between the Application ... Read More Details

10 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