Which device is used to extend a network's physical range by amplifying signals? MCQ with Answer and Explanation

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

A. Repeater

B. Switch

C. Gateway

D. Router

Answer: Option A

Solution (By JKSSB Mock Tests)

A repeater amplifies and regenerates signals to extend cable length.

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Question #1

Which protocol is used for network address translation?

A. DHCP

B. NAT

C. ARP

D. DNS

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Correct Answer: Option B

Explanation:
NAT translates private addresses to public ones, allowing multiple devices to share a single public IP.

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Question #2

Which layer of the TCP/IP model corresponds to the OSI network layer?

A. Transport layer

B. Link layer

C. Application layer

D. Internet layer

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Correct Answer: Option D

Explanation:
In TCP/IP, the Internet layer corresponds to the OSI network layer, handling routing and IP.

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Question #3

What is the maximum number of hosts in a Class B network?

A. 16,777,214

B. 254

C. 65,536

D. 65,534

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Correct Answer: Option D

Explanation:
Class B has 16 host bits, giving 2^16 - 2 = 65,534 usable hosts.

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