What is the full form of LAN in computer networking? MCQ with Answer and Explanation

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What is the full form of LAN in computer networking?

A. Link Area Network

B. Large Area Network

C. Local Area Network

D. Local Access Network

Answer: Option C

Solution (By JKSSB Mock Tests)

LAN stands for Local Area Network, which connects computers within a limited geographical area.

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Practice More Computer Networking Questions

Question #1

What is the role of a firewall in a network?

A. To assign IP addresses

B. To route packets

C. To boost signal

D. To protect against unauthorized access

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Correct Answer: Option D

Explanation:
Firewalls enforce security policies by blocking unauthorized traffic.

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Question #2

What is the function of the Address Resolution Protocol (ARP)?

A. Maps MAC addresses to IP addresses

B. Maps IP addresses to MAC addresses

C. Maps domain names to IP addresses

D. Maps ports to services

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Correct Answer: Option B

Explanation:
ARP resolves an IP address to a physical MAC address on the local network.

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Question #3

Which topology design provides an exceptionally robust environment where the failure of any single connection line affects only the device connected to that specific line?

A. Ring Topology

B. Linear Topology

C. Bus Topology

D. Star Topology

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Correct Answer: Option D

Explanation:
In a star topology, each node uses an isolated cable run to connect to a central switch. A break in one cable only disconnects that specific device.

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