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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 of the following is the fastest communication mode?

  • Simplex
  • Full Duplex
  • Half Duplex
  • None of these
0 Comments
Correct Answer: B. Full Duplex

Explanation:

The fastest communication mode is Full Duplex. In this mode, data can be sent and ... Read More Details

2 Computer Networking MCQs

The four numbers in an IP address is called?

  • Octal
  • Octets
  • Bytes
  • None of these
0 Comments
Correct Answer: B. Octets

Explanation:

The four numbers in an IP address are called octets. Each number is 8 bits ... Read More Details

3 IT Abbreviations MCQs

LAN stands for?

  • Local Area Network
  • Large Area Network
  • Logical Access Network
  • Limited Access Network
0 Comments
Correct Answer: A. Local Area Network

Explanation:

LAN stands for Local Area Network. It is a network that connects computers and devices ... Read More Details

4 Computer Networking MCQs

Which of the following tasks is performed at the Application Layer?

  • Frame creation
  • IP addressing
  • User authentication
  • Signal modulation
0 Comments
Correct Answer: C. User authentication

Explanation: The Application Layer is the seventh and topmost layer of the OSI model. It serves ... Read More Details

5 Computer Networking MCQs

Which protocol is used to send emails?

  • FTP
  • SMTP
  • DNS
  • SSH
0 Comments
Correct Answer: B. SMTP

Explanation: SMTP (Simple Mail Transfer Protocol) is the protocol used to send emails from email clients ... Read More Details

6 Computer Networking MCQs

What is the role of the HTTP protocol at the Application Layer?

  • It secures email communication
  • It routes packets between routers
  • It delivers web content from server to client
  • It assigns IP addresses
0 Comments
Correct Answer: C. It delivers web content from server to client

Explanation:

The HTTP (HyperText Transfer Protocol) is one of the most important protocols at the Application ... Read More Details

7 Computer Networking MCQs

The Application Layer provides an interface between:

  • User and the network
  • Router and switch
  • MAC and IP
  • Server and database
0 Comments
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

8 Computer Networking MCQs

Which of the following is NOT an Application Layer protocol?

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

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

9 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

10 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

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