In a /16 subnet, how many usable hosts are available?

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

In a /16 subnet, how many usable hosts are available?

Explanation:
Understanding how many hosts a subnet can support hinges on how many bits are available for hosts. A /16 network uses 16 bits for the host portion, giving 2^16 = 65,536 total addresses. In IPv4 subnets, one address is the network address (all host bits zero) and one is the broadcast address (all host bits one), neither of which can be assigned to hosts. Subtracting those two leaves 65,534 usable hosts.

Understanding how many hosts a subnet can support hinges on how many bits are available for hosts. A /16 network uses 16 bits for the host portion, giving 2^16 = 65,536 total addresses. In IPv4 subnets, one address is the network address (all host bits zero) and one is the broadcast address (all host bits one), neither of which can be assigned to hosts. Subtracting those two leaves 65,534 usable hosts.

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