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Define the number of network IDs in a class C network?

Answers:

Answer #1
For a Class C network, the number of usable Network ID bits is 21. The number of possible network IDs is 2 raised to 21 or 2,097,152. The number of host IDs per network ID is 2 raised to 8 minus 2, or 254.

Answer #2
The number of networks bit in class C is 24 bit.

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