Which class of IP address is used for multicast? MCQ with Answer and Explanation

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Which class of IP address is used for multicast?

A. Class B

B. Class A

C. Class D

D. Class C

Answer: Option C

Solution (By JKSSB Mock Tests)

Class D (224.0.0.0 to 239.255.255.255) is reserved for multicast groups.

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Question #1

What structural architecture is used by a peer-to-peer (P2P) network model?

A. Every computer node can act as both a client that requests data and a server that shares data directly with other devices.

B. Nodes communicate exclusively via analog phone line modems.

C. Devices connect to a single central cable using structural terminators.

D. A high-capacity central mainframe coordinates all data assets.

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Correct Answer: Option A

Explanation:
A P2P network distributes roles evenly across all nodes, allowing devices to share resources directly without a central server.

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Question #2

Which network topology provides the highest redundancy because each device is connected to every other?

A. Star

B. Ring

C. Bus

D. Mesh

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Correct Answer: Option D

Explanation:
Full mesh topology connects each node to every other, offering multiple paths and high redundancy.

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Question #3

Which device can be used to extend the length of a network segment by regenerating the signal?

A. Router

B. Switch

C. Gateway

D. Repeater

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Correct Answer: Option D

Explanation:
A repeater amplifies and regenerates signals to extend the distance of a network.

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