Which protocol is responsible for mapping a known logical IP address to its corresponding physical hardware MAC address on a local area network? MCQ with Answer and Explanation

Question

Which protocol is responsible for mapping a known logical IP address to its corresponding physical hardware MAC address on a local area network?

A. DNS

B. ARP (Address Resolution Protocol)

C. DHCP

D. ICMP

Answer: Option B

Solution (By JKSSB Mock Tests)

ARP operates within local subnets to discover the physical MAC address of a device when its logical IP address is already known.

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Which device is used to reduce network congestion by dividing a network into collision domains?

A. Hub

B. Repeater

C. Switch

D. Modem

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Correct Answer: Option C

Explanation:
A switch creates separate collision domains for each port, reducing collisions.

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Question #2

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Which of the following is a protocol used for secure communication over the internet?

A. HTTP

B. HTTPS

C. Telnet

D. FTP

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Correct Answer: Option B

Explanation:
HTTPS (HTTP Secure) uses SSL/TLS to encrypt data for secure communication.

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Question #3

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What is the maximum segment length for a 10BASE-T Ethernet network using twisted-pair cable?

A. 185 meters

B. 1000 meters

C. 100 meters

D. 500 meters

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Correct Answer: Option C

Explanation:
10BASE-T specifies a maximum cable segment length of 100 meters.

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