How many host addresses can be assigned with a subnet mask of 255.255.255.0? Explain how you calculated the result.
What will be an ideal response?
With a default subnet mask of 255.255.255.0, 254 host addresses can be assigned to each segment. You use the formula 2x - 2 for this calculation. For this example, x equals 8 because there are eight bits in the fourth octet:
28 - 2 = 254
You must subtract two in the formula because the network portion and host portion of an IP address can't contain all ones or all zeros.
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