Which IP address range indicates a Class A network identity under traditional routing rules? MCQ with Answer and Explanation

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Which IP address range indicates a Class A network identity under traditional routing rules?

A. 1.0.0.0 to 126.255.255.255

B. 224.0.0.0 to 239.255.255.255

C. 192.0.0.0 to 223.255.255.255

D. 128.0.0.0 to 191.255.255.255

Answer: Option A

Solution (By JKSSB Mock Tests)

Class A IP addresses utilize the first octet range from 1 to 126 (excluding 127 which is reserved for loopback diagnostics).

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Question #1

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What structural benefit does a Mesh Topology offer compared to alternative network layouts?

A. It can operate without any network interface cards.

B. It provides extreme fault tolerance and redundancy by creating alternative communication pathways.

C. It minimizes physical cabling requirements.

D. It removes the requirement for hardware MAC profiles.

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Correct Answer: Option B

Explanation:
Because mesh networks provide multiple redundant connections between nodes, communication can bypass broken lines via alternative paths.

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Question #2

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

A. Switch

B. Gateway

C. Router

D. Repeater

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Correct Answer: Option D

Explanation:
A repeater amplifies and regenerates signals to extend cable length.

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Question #3

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What is the loopback IP address in IPv4?

A. 192.168.1.1

B. 0.0.0.0

C. 255.255.255.255

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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