Which IPv4 address class range is explicitly reserved for multicast distribution groups rather than individual node assignments? MCQ with Answer and Explanation

Question

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

A. Class B

B. Class D

C. Class E

D. Class A

Answer: Option B

Solution (By JKSSB Mock Tests)

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 #1

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Which topology is commonly used in modern Ethernet networks?

A. Ring

B. Mesh

C. Star

D. Bus

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Correct Answer: Option C

Explanation:
Star topology with a central switch is the most common topology in modern Ethernet LANs.

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Question #2

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Which network is used for connecting personal devices like a smartphone and smartwatch?

A. WAN

B. LAN

C. MAN

D. PAN

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Correct Answer: Option D

Explanation:
PAN (Personal Area Network) is designed for short-range communication among personal devices, typically within 10 meters.

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Question #3

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What is the primary operational objective of the Dynamic Host Configuration Protocol (DHCP) framework?

A. To map alphanumeric domain paths to server IP records.

B. To encrypt frame headers across a network interface.

C. To manage physical hardware MAC sorting rules.

D. To automatically assign temporary logical IP address configurations and subnets to connecting network client devices.

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Correct Answer: Option D

Explanation:
DHCP automatically assigns IP addresses, subnet masks, and default gateways to devices when they connect to a network.

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