Which device creates separate broadcast domains? MCQ with Answer and Explanation

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Which device creates separate broadcast domains?

A. Router

B. Repeater

C. Hub

D. Switch

Answer: Option A

Solution (By JKSSB Mock Tests)

Routers create separate broadcast domains because they do not forward broadcasts.

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Question #1

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Which IPv4 address class range is explicitly reserved for multicast distribution groups rather than individual node assignments?

A. Class D

B. Class B

C. Class E

D. Class A

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Correct Answer: Option A

Explanation:
Class D IP addresses span from 224.0.0.0 to 239.255.255.255 and are reserved worldwide for multicasting workflows.

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Question #2

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What is the loopback IP address in IPv4?

A. 255.255.255.255

B. 0.0.0.0

C. 192.168.1.1

D. 127.0.0.1

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Correct Answer: Option D

Explanation:
127.0.0.1 is the loopback address used for testing network software on the local machine.

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Question #3

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Which protocol is used to retrieve email from a server?

A. FTP

B. HTTP

C. POP3

D. SMTP

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Correct Answer: Option C

Explanation:
POP3 (Post Office Protocol) is used to download email from a server to a client.

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