What is the function of the Address Resolution Protocol (ARP)? MCQ with Answer and Explanation

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

A. Maps IP addresses to MAC addresses

B. Maps domain names to IP addresses

C. Maps ports to services

D. Maps MAC addresses to IP addresses

Answer: Option A

Solution (By JKSSB Mock Tests)

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

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Question #1

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What specific task is performed by the Address Resolution Protocol (ARP) within a local area network segment?

A. It translates web domain names into IP paths.

B. It maps a known logical IP address to a physical hardware MAC address.

C. It automatically assigns dynamic IP configurations to client devices.

D. It routes data packets across separate internet gateways.

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Correct Answer: Option B

Explanation:
ARP maps logical IP network targets to their physical MAC hardware addresses within a local data link layer segment.

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Question #2

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What is the role of a network hub?

A. To receive and forward data to all connected ports

B. To route data between networks

C. To filter data based on MAC

D. To assign IP addresses

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Correct Answer: Option A

Explanation:
A hub broadcasts incoming data to all other ports, acting as a multiport repeater.

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Question #3

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Which protocol is used for reliable, connection-oriented data transmission?

A. UDP

B. TCP

C. IGMP

D. ICMP

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Correct Answer: Option B

Explanation:
TCP (Transmission Control Protocol) provides reliable, ordered, and error-checked delivery of data.

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