Which protocol is used to send a message from one host to many hosts? MCQ with Answer and Explanation

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Which protocol is used to send a message from one host to many hosts?

A. Multicast

B. Unicast

C. Anycast

D. Broadcast

Answer: Option A

Solution (By JKSSB Mock Tests)

Multicast sends data to a group of hosts interested in the traffic.

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Question #1

What does the term broadcast domain mean?

A. A set of devices connected to a hub

B. A set of devices that can collide

C. A set of devices that can receive broadcast frames

D. A set of devices that share the same IP network

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Correct Answer: Option C

Explanation:
A broadcast domain is a logical division where a broadcast frame sent by one device can reach all other devices.

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Question #2

Which address class specifies an initial octet value spanning from 128 to 191 under traditional classful IP routing protocols?

A. Class C

B. Class D

C. Class A

D. Class B

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Correct Answer: Option D

Explanation:
Class B IP addresses feature a first octet ranging from 128 to 191, typically mapped to medium-sized corporate networks.

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Question #3

Which network device is used to connect two different network segments and forward frames based on MAC addresses?

A. Repeater

B. Bridge

C. Router

D. Hub

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Correct Answer: Option B

Explanation:
A bridge connects two network segments and forwards frames based on MAC addresses, operating at layer 2.

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