What is the maximum speed of Gigabit Ethernet? MCQ with Answer and Explanation

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What is the maximum speed of Gigabit Ethernet?

A. 1 Gbps

B. 100 Gbps

C. 10 Gbps

D. 100 Mbps

Answer: Option A

Solution (By JKSSB Mock Tests)

Gigabit Ethernet supports 1 Gbps (1000 Mbps).

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Question #1

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What layer of the OSI model does a network Router operate within to make forwarding choices based on logical destination IP addresses?

A. Physical Layer (Layer 1)

B. Data Link Layer (Layer 2)

C. Transport Layer (Layer 4)

D. Network Layer (Layer 3)

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Correct Answer: Option D

Explanation:
Routers operate at the Network Layer (Layer 3), analyzing logical IP addresses to forward data packets across separate networks.

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Question #2

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

A. To store routing information

B. To store IP addresses

C. To store mappings between MAC addresses and ports

D. To store domain names

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Correct Answer: Option C

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

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Question #3

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What condition occurs on a shared bus network if multiple stations attempt to transmit data frames over the backbone line simultaneously?

A. MAC address duplication

B. Signal termination bypass

C. Data Collision

D. Automatic loopback routing

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Correct Answer: Option C

Explanation:
Data collisions occur when multiple devices transmit signals over a shared electrical medium simultaneously, garbling the data frames.

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