Advanced Subnetting MCQs

Practice Advanced Subnetting MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 1

Computer & Networking BasicsAdvanced Subnetting

A /27 IPv4 subnet contains how many total addresses?

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Correct Answer: B. 32

Explanation: A /27 prefix leaves 5 host bits, so it contains 2^5=32 total IPv4 addresses.

Reference: Standard computer and networking fundamentals: advanced subnetting

Question 2

Computer & Networking BasicsAdvanced Subnetting

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Correct Answer: B. 30

Explanation: A /27 contains 32 total addresses; excluding network and broadcast addresses leaves 30 conventional usable host addresses.

Reference: Standard computer and networking fundamentals: advanced subnetting

Question 3

Computer & Networking BasicsAdvanced Subnetting

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Correct Answer: C. 255.255.255.224

Explanation: A /27 mask has 27 leading 1 bits, giving 255.255.255.224.

Reference: Standard computer and networking fundamentals: advanced subnetting

Question 4

Computer & Networking BasicsAdvanced Subnetting

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Correct Answer: D. 10.0.0.127

Explanation: A /27 has blocks of 32 addresses. The block starting at .96 ends at .127, its broadcast address.

Reference: Standard computer and networking fundamentals: advanced subnetting

Question 5

Computer & Networking BasicsAdvanced Subnetting

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Correct Answer: B. /26

Explanation: A /26 provides 64 total and 62 conventional usable addresses; /27 provides only 30 usable addresses.

Reference: Standard computer and networking fundamentals: advanced subnetting