150.48.0.0/4 network block?

i have little tricky question.

Assume that you have been assigned 150.48.0.0/4 network block. You need to establish sixteen(16) subnets

a. specify the extended network prefix that allows the creation of sixteen subnets

b. express the subnets in binary format and dotted-decimal notation for the first 4 subnets(of the 16 subnets)

how can i solve this question.
could someone help me_?

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earweed

You will not see a question like this on your Net+. if you just WISH to learn subnetting (and answer that question) go to the thread subnetting made easy
Subnetting Made Easy

johnwest43

The largest block you could assign to 150.x.x.x is /16 its a class b network. (Unless CIDR is in use)
So lets assume your block is 150.48.0.0/16.

To get 16 useable subnets your new mask would be 255.255.240.0 150.48.0.0/20

For part b your subnets would be
150.48.0.0
150.48.16.0
150.48.32.0
150.48.48.0

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