What is the total number of available host addresses in a Class C network?

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Multiple Choice

What is the total number of available host addresses in a Class C network?

Explanation:
In a Class C network, the default subnet mask is 255.255.255.0, which leaves 8 bits for hosts. That gives 2^8 = 256 possible addresses in the subnet. But two addresses are reserved: the network address (host part all zeros) and the broadcast address (host part all ones). Subtracting those, you have 256 − 2 = 254 usable addresses for hosts. So the total number of available host addresses is 254. The other numbers refer to the total addresses (256), the broadcast address value (255), or exceed what 8 host bits can provide (512).

In a Class C network, the default subnet mask is 255.255.255.0, which leaves 8 bits for hosts. That gives 2^8 = 256 possible addresses in the subnet. But two addresses are reserved: the network address (host part all zeros) and the broadcast address (host part all ones). Subtracting those, you have 256 − 2 = 254 usable addresses for hosts. So the total number of available host addresses is 254. The other numbers refer to the total addresses (256), the broadcast address value (255), or exceed what 8 host bits can provide (512).

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