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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 tasks is handled by the Network Layer?

  • Segment sequencing
  • Routing packets between networks
  • Media access control
  • Session termination
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Correct Answer: B. Routing packets between networks

Explanation:

The main task handled by the Network Layer in the OSI model is routing packets ... Read More Details

2 Computer Networking MCQs

What is the purpose of the ARP protocol in networking?

  • Converts MAC address to IP address
  • Converts domain name to IP address
  • Converts IP address to MAC address
  • Converts MAC address to hostname
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Correct Answer: C. Converts IP address to MAC address

Explanation:

The ARP (Address Resolution Protocol) is used in networking to convert an IP address to ... Read More Details

3 Computer Networking MCQs

Which addressing scheme is used at the Network Layer?

  • Port numbers
  • MAC addresses
  • IP addresses
  • Domain names
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Correct Answer: C. IP addresses

Explanation:

The addressing scheme used at the Network Layer of the OSI model is the IP ... Read More Details

4 Computer Networking MCQs

Which of the following is a protocol used at the Network Layer?

  • TCP
  • UDP
  • IP
  • FTP
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Correct Answer: C. IP

Explanation: The protocol used at the Network Layer of the OSI model is IP (Internet Protocol).

The ... Read More Details

5 Computer Networking MCQs

Which device operates at the Network Layer?

  • Hub
  • Switch
  • Router
  • Bridge
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Correct Answer: C. Router

Explanation: The device that operates at the Network Layer of the OSI model is the Router.

Routers ... Read More Details

6 Computer Networking MCQs

What is the main data unit at the Network Layer?

  • Bit
  • Frame
  • Packet
  • Segment
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Correct Answer: C. Packet

Explanation: The main data unit at the Network Layer of the OSI model is called a ... Read More Details

7 Computer Networking MCQs

What is the primary function of the Network Layer?

  • Media access control
  • Logical addressing and routing
  • Data encryption
  • Flow control
0 Comments
Correct Answer: B. Logical addressing and routing

Explanation:

The primary function of the Network Layer in the OSI model is to handle logical ... Read More Details

8 Computer Networking MCQs

Which of the following protocols helps prevent data collisions on Ethernet networks?

  • ARP
  • DNS
  • CSMA/CD
  • HTTP
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Correct Answer: C. CSMA/CD

Explanation: CSMA/CD (Carrier Sense Multiple Access with Collision Detection) is a protocol used in traditional Ethernet ... Read More Details

9 Computer Networking MCQs

CRC (Cyclic Redundancy Check) is used for:

  • Address resolution
  • Error detection in frames
  • Data encryption
  • Routing
0 Comments
Correct Answer: B. Error detection in frames

Explanation: CRC (Cyclic Redundancy Check) is a technique used for error detection in data frames at ... Read More Details

10 Computer Networking MCQs

What is the role of the MAC sublayer in the Data Link Layer?

  • Encrypt data
  • Provide logical addressing
  • Control access to the physical medium
  • Manage sessions between hosts
0 Comments
Correct Answer: C. Control access to the physical medium

Explanation:

The MAC (Media Access Control) sublayer is one of the two parts of the Data ... Read More Details

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