What is the purpose of a cable tester in networking? MCQ with Answer and Explanation

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What is the purpose of a cable tester in networking?

A. To measure network speed

B. To connect networks

C. To verify cable continuity and wiring

D. To assign IP addresses

Answer: Option C

Solution (By JKSSB Mock Tests)

Cable testers check for opens, shorts, and proper pinouts in network cables.

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Question #1

What is the purpose of a subnet mask?

A. To encrypt data

B. To define the network portion and host portion of an IP address

C. To assign MAC addresses

D. To resolve domain names

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Correct Answer: Option B

Explanation:
A subnet mask separates the IP address into network and host bits.

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Question #2

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

A. 224.0.0.0 to 239.255.255.255

B. 192.0.0.0 to 223.255.255.255

C. 128.0.0.0 to 191.255.255.255

D. 1.0.0.0 to 126.255.255.255

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Correct Answer: Option D

Explanation:
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 #3

Which network topology is used in early Ethernet networks with coaxial cable?

A. Bus

B. Mesh

C. Ring

D. Star

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Correct Answer: Option A

Explanation:
Early Ethernet used a bus topology with coaxial cable (thicknet/thinnet).

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