Networking - Subnetting - Discussion

Discussion Forum : Subnetting - Subnetting (Q.No. 13)
You have a network with a subnet of Which is the valid host address?
Answer: Option
A Class B network ID with a /22 mask is, with a block size of 4 in the third octet. The network address in the question is in subnet with a broadcast address of Only option E even has the correct subnet mask listed, and is a valid host.
13 comments Page 2 of 2.

Haya said:   7 years ago
Why option A is not correct?

It is also a valid host. Because range is in between to

Pruthvi said:   8 years ago
11111111.11111111.1 1 1 1 1 {1} 0 0.00000000/22

128 64 32 16 8 {4} 2 1

Here the host and network parts are separated at 4. So the block size is 4. This is a simple trick.

Mtk said:   9 years ago
I couldn't understand how did the /22 mask could have block size of 4?

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