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Given Subnet mask is 255.255.31.0 then how can one conclude that 

 The subnet mask 255.255.x.x belongs to class B type(IP address range will be from 128.1.0.1 to 191.255.255.254) 

I get that from 255.255 N/w id = 16 bits but then how can we write range of ip addresses?

 

@Shaik Brother can you see this?

1 Answer

Best answer
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1 votes
You can write address range in the host id part

like given 128.1.x.x/16

so in x.x part you can start from 00000000

to 255 and

first and last will be reserved

128.1.0.0

128.1.0.1

-------

128.1.0.255

so on
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