Which of the following cannot be subnet mask of a classful address?
Which of the following cannot be subnet mask of a classful address?
1). 255.0.0.0
2). 0.255.255.255
3). 255.255.0.0
4). 255.255.255.0
1 answers
Answered by
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| Votes
1 |
# Classful address:
In subnet mask:
Network Id of classful address are all ones(1’s) and host Id of classful address are all zeros(0’s).
|
Classful Network Type
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Number of bits in network id
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Subnet mask
|
|
Class A
|
8
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255.0.0.0
|
|
Class B
|
16
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255.255.0.0
|
|
Class C
|
24
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255.255.255.0
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