# 150.48.0.0/4 network block?

Member Posts: 1 ■□□□□□□□□□
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_?

• Member Posts: 5,192 ■■■■■■■■■□
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
No longer work in IT. Play around with stuff sometimes still and fix stuff for friends and relatives.
• Member Posts: 294
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
CCNP: ROUTE B][COLOR=#ff0000]x[/COLOR][/B , SWITCH B][COLOR=#ff0000]x[/COLOR][/B, TSHOOT [X ] Completed on 2/18/2014