What is the main function of a router's routing protocol? MCQ with Answer and Explanation

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What is the main function of a router's routing protocol?

A. To assign IP addresses

B. To filter traffic

C. To exchange routing information with other routers

D. To resolve MAC addresses

Answer: Option C

Solution (By JKSSB Mock Tests)

Routing protocols (e.g., OSPF, BGP) allow routers to share information about network paths.

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Question #1

What is the primary function of a switch's MAC address table?

A. To store mappings between MAC addresses and ports

B. To store IP addresses

C. To store domain names

D. To store routing information

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Correct Answer: Option A

Explanation:
A switch's MAC address table learns which MAC address is associated with which port for efficient forwarding.

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Question #2

What is the purpose of a default gateway?

A. To translate domain names to IP addresses

B. To route traffic from a local network to other networks

C. To assign IP addresses dynamically

D. To provide security by filtering packets

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Correct Answer: Option B

Explanation:
A default gateway is a router that connects a local network to external networks, forwarding traffic when the destination is not local.

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Question #3

Which topological structure combines elements from two or more distinct, basic topologies (such as mixing star and bus layouts) within a single infrastructure?

A. Ring Topology

B. Mesh Topology

C. Linear Topology

D. Hybrid Topology

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Correct Answer: Option D

Explanation:
A hybrid topology integrates multiple foundational network topologies into a combined, customized networking layout.

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