Which device contains the unique physical MAC address hardware mapping, serving as the physical interface layer between a computer's bus tracks and an Ethernet line? MCQ with Answer and Explanation

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Which device contains the unique physical MAC address hardware mapping, serving as the physical interface layer between a computer's bus tracks and an Ethernet line?

A. Network Interface Card (NIC)

B. Analog Modem

C. Central Hub

D. Bus Terminator Plug

Answer: Option A

Solution (By JKExamLibrary)

The NIC provides the physical interface and circuitry a computer needs to connect to network media, and carries a unique, hardcoded MAC address.

This question belongs to: Computer Computer Networking

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Practice More Computer Networking Questions

Question #1 Report Error

Which topology requires a central controller (like a hub or switch) to manage data transmission?

A. Bus

B. Ring

C. Mesh

D. Star

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Correct Answer: Option D

Explanation:
Star topology relies on a central device to which all nodes connect.

This question belongs to: Computer Computer Networking

Question #2 Report Error

Which of the following is a key operational drawback of using a basic hardware hub instead of a network switch?

A. Hubs cannot interface with Ethernet cabling.

B. Hubs broadcast all incoming traffic to every connected port, which reduces available bandwidth and increases data collision risks.

C. Hubs require manual IP allocation steps.

D. Hubs alter the physical MAC addresses of packets.

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Correct Answer: Option B

Explanation:
Because a hub lacks forwarding logic, it repeats incoming data to all ports, creating a single shared collision domain that reduces performance.

This question belongs to: Computer Computer Networking