Which of the following is a characteristic of a PAN? MCQ with Answer and Explanation

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Which of the following is a characteristic of a PAN?

A. Uses short-range wireless technology like Bluetooth

B. Covers a large city

C. Uses fiber optics

D. Connects thousands of users

Answer: Option A

Solution (By JKSSB Mock Tests)

PANs are personal, short-range networks typically using Bluetooth or IR.

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Question #1

Which device is used to extend a network's physical range by amplifying signals?

A. Switch

B. Router

C. Gateway

D. Repeater

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Correct Answer: Option D

Explanation:
A repeater amplifies and regenerates signals to extend cable length.

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Question #2

Which device functions exclusively at the physical layer of the OSI model to amplify or regenerate weak electrical or optical network signals over extended distances?

A. Repeater

B. Bridge

C. Gateway

D. Router

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Correct Answer: Option A

Explanation:
A repeater acts at Layer 1 to boost incoming electrical or optical signals, counteracting signal attenuation across long cable runs.

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Question #3

Which class of IP address has the first octet ranging from 128 to 191?

A. Class D

B. Class B

C. Class C

D. Class A

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Correct Answer: Option B

Explanation:
Class B addresses have first octet between 128 and 191.

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