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

Question
What specific task is performed by the Address Resolution Protocol (ARP) within a local area network segment?
A. It routes data packets across separate internet gateways.
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 translates web domain names into IP paths.
Answer: Option B
Solution (By JKSSB Mock Tests)
ARP maps logical IP network targets to their physical MAC hardware addresses within a local data link layer segment.
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Question #1
What structural advantage does a full Mesh Topology layout offer compared to alternative network configurations?
A. It minimizes physical cabling costs.
B. It removes the requirement for hardware MAC profiles.
C. It can operate without network interface cards.
D. It provides maximum fault tolerance and reliability by establishing direct redundant connections between all nodes.
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Correct Answer: Option D

Explanation:
Because a full mesh topology links every device directly to every other device, a failed line can be easily bypassed using alternative redundant paths.
This question belongs to: Computer Computer Networking
Question #2
What does the IP loopback address '127.0.0.1' explicitly represent?
A. The primary public DNS server route.
B. The local host machine itself, used to test network software stacks locally.
C. The broadcast channel for local wireless hubs.
D. The default gateway router channel.
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Correct Answer: Option B

Explanation:
127.0.0.1 is the standard loopback address. Packets sent here cycle back within the local network software layer without hitting external wires.
This question belongs to: Computer Computer Networking
Question #3
What is the role of a network bridge?
A. To connect two network segments and filter frames
B. To assign IP addresses
C. To amplify signals
D. To connect to the Internet
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Correct Answer: Option A

Explanation:
Bridges connect segments and filter traffic to reduce collisions.
This question belongs to: Computer Computer Networking
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