Given a block of addresses with a/28 subnet mask, calculate the number of useful host IDs available on this subnet and explain how you arrived at your answer.

What will be an ideal response?


Given a subnet mask of/28, there are just 14 available host IDs for this subnet. The formula I used is 2(number of zeroes in the subnet mask)-2. In this case there are four zeroes in the subnet mask, so the calculation would look like this: 24-2 = 14.

Computer Science & Information Technology

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