Which device operates at the data link layer and uses MAC addresses to forward data? MCQ with Answer and Explanation

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Which device operates at the data link layer and uses MAC addresses to forward data?

A. Switch

B. Hub

C. Gateway

D. Router

Answer: Option A

Solution (By JKSSB Mock Tests)

A switch uses MAC addresses to forward frames within a local network, operating at layer 2.

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What is the function of a modem's modulation?

A. Amplifies signals

B. Converts digital signals to analog for transmission

C. Converts analog to digital

D. Filters signals

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Correct Answer: Option B

Explanation:
Modulation converts digital data from a computer into analog signals suitable for transmission over telephone lines.

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Question #2

Which protocol is used to access and view web pages?

A. HTTP

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Correct Answer: Option A

Explanation:
HTTP (Hypertext Transfer Protocol) is used for retrieving web pages.

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Which type of network environment covers a corporate office spanning multiple high-rise buildings across an entire urban district or metropolitan area?

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Correct Answer: Option C

Explanation:
A Metropolitan Area Network (MAN) is optimized to connect computing resources across city-wide or regional municipal scopes.

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