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JN0-102 · Question #129
JN0-102 Question #129: Real Exam Question with Answer & Explanation
The correct answer is B: If a bit is turned off (0), the corresponding bit in the IP address is used for the host portion.. Example: 255.0.0.0 (Class A network), in binary 11111111.00000000.00000000.00000000 The leftmost octet, 11111111, represents the network prefix, while the other three octets, with zeroes, represent the host portion.
Question
Which two statements about subnet masks are true? (Choose two.)
Options
- AIf a bit is turned on (1), the corresponding bit in the IP address is used for the host portion.
- BIf a bit is turned off (0), the corresponding bit in the IP address is used for the host portion.
- CIf a bit is turned on (1), the corresponding bit in the IP address is used for the network prefix.
- DIf a bit is turned off (0), the corresponding bit in the IP address is used for the network prefix.
Explanation
Example: 255.0.0.0 (Class A network), in binary 11111111.00000000.00000000.00000000 The leftmost octet, 11111111, represents the network prefix, while the other three octets, with zeroes, represent the host portion.
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