Which address range is reserved for private Class B networks?

Study for the Internet Protocol Version 4 Test. Use flashcards and multiple-choice questions, each with hints and explanations. Master the exam with confidence!

Multiple Choice

Which address range is reserved for private Class B networks?

Explanation:
Private IPv4 addresses are reserved for internal networks and are not routable on the public Internet. For a Class B private space, the block starts at 172.16.0.0 and uses a /12 mask (255.240.0.0), which means the addresses range from 172.16.0.0 up to 172.31.255.255. This is the range designated for private Class B networks. The other ranges shown fall outside this /12 block because they have second octets outside 16–31, so they aren’t the private Class B space.

Private IPv4 addresses are reserved for internal networks and are not routable on the public Internet. For a Class B private space, the block starts at 172.16.0.0 and uses a /12 mask (255.240.0.0), which means the addresses range from 172.16.0.0 up to 172.31.255.255. This is the range designated for private Class B networks. The other ranges shown fall outside this /12 block because they have second octets outside 16–31, so they aren’t the private Class B space.

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