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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

In a computer network, what is the main function of the application layer?

  • To provide network services to the applications
  • To transmit data between network devices
  • To package data for transfer
  • To route data between networks
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Correct Answer: A. To provide network services to the applications

Explanation: The main function of the Application Layer (Layer 7 of the OSI model) is to ... Read More Details

2 Computer Networking MCQs

Which layer of the OSI model ensures the error-free transmission of data?

  • Physical Layer
  • Data Link Layer
  • Network Layer
  • Transport Layer
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Correct Answer: B. Data Link Layer

Explanation: The Data Link Layer (Layer 2 of the OSI model) is responsible for ensuring the ... Read More Details

3 Computer Networking MCQs

In a peer-to-peer network, each computer can act as:

  • Only a client
  • Only a server
  • Both client and server
  • None of the above
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Correct Answer: C. Both client and server

Explanation:

In a peer-to-peer (P2P) network, each computer can act as both a client and a ... Read More Details

4 Computer Networking MCQs

What does NIC stand for in networking?

  • Network Internal Connection
  • Network Interface Card
  • National Internet Code
  • None of the above
0 Comments
Correct Answer: B. Network Interface Card

Explanation: NIC stands for Network Interface Card. It is a physical hardware component that allows a ... Read More Details

5 Computer Networking MCQs

Which of the following is an advantage of networking?

  • Increased data redundancy
  • Increased software costs
  • Centralized data access
  • Manual data transfer
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Correct Answer: C. Centralized data access

Explanation: The correct advantage of networking is Centralized data access. In a network, all users can ... Read More Details

6 Computer Networking MCQs

What is the main purpose of computer networking?

  • To play games
  • To connect printers to computers
  • To share resources and information
  • To monitor systems only
0 Comments
Correct Answer: C. To share resources and information

Explanation: The main purpose of computer networking is to share resources and information between computers and ... Read More Details

7 Computer Networking MCQs

Which of the following is a connectionless protocol?

  • TCP
  • HTTP
  • FTP
  • UDP
0 Comments
Correct Answer: D. UDP

Explanation: UDP (User Datagram Protocol) is a connectionless protocol. It sends data without making a connection ... Read More Details

8 Computer Networking MCQs

What is the purpose of a firewall in a network?

  • Boost signal strength
  • Prevent unauthorized access
  • Convert IP to MAC
  • Format data packets
0 Comments
Correct Answer: B. Prevent unauthorized access

Explanation: A firewall is a security system that helps prevent unauthorized access to or from a ... Read More Details

9 Computer Networking MCQs

Which command is used to test network connectivity?

  • ipconfig
  • ping
  • route
  • netstat
0 Comments
Correct Answer: B. ping

Explanation: The ping command is used to check if a device is connected to a network ... Read More Details

10 Computer Networking MCQs

A MAC address is associated with which hardware?

  • Monitor
  • Hard Disk
  • Network Interface Card (NIC)
  • RAM
0 Comments
Correct Answer: C. Network Interface Card (NIC)

Explanation:

A MAC address (Media Access Control address) is a unique ID assigned to the Network ... Read More Details

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