What default subnet mask is associated with Class B IP networks under traditional classful network addressing parameters? MCQ with Answer and Explanation

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What default subnet mask is associated with Class B IP networks under traditional classful network addressing parameters?

A. 255.0.0.0

B. 255.255.0.0

C. 255.255.255.255

D. 255.255.255.0

Answer: Option B

Solution (By JKSSB Mock Tests)

Class B networks default to a 16-bit prefix length, which maps to a default subnet mask of 255.255.0.0.

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What is the purpose of the OSI model?

A. To standardize network communication

B. To provide security

C. To assign IP addresses

D. To route packets

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Correct Answer: Option A

Explanation:
The OSI model provides a framework for understanding and standardizing network protocols.

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Question #2

What is the purpose of a default gateway?

A. To route traffic from a local network to other networks

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C. To translate domain names to IP addresses

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Correct Answer: Option A

Explanation:
A default gateway is a router that connects a local network to external networks, forwarding traffic when the destination is not local.

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Question #3

What does the term broadcast domain mean?

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Correct Answer: Option B

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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