I attempted the following question and got the number of hosts correct; however, I don't understand how they got the number of subnets.

Question: How many subnets and host per subnet can you get from the network 172.23.0.0 255.255.255.240?

Answer: 4096 subnets and 14 hosts per subnet

]]>I hope the answer below helps you.

Question: How many subnets and host per subnet can you get from the network 172.23.0.0 255.255.255.240?

We start with the idea of understanding that the base network is a class B network:

172.23.0.0 255.255.0.0 = 1 netowrk, 65534 possible hosts on this network.

If you now

Question: 172.16.0.0/18, how many subnets?

We start the same way: 172.16.0.0 255.255.0.0 is the base network (1 netowrk, 65534 hosts on this network). the new subnet mask= 255.255.192.0

If we

Let us know if we need more explanation!

Cordially,

Ronnie Wong

Host, ITProTV ]]>

Question: How many subnets and hosts per subnet can you get from the network 172.16.0.0/18?

Answer: 4 subnets and 16,382 hosts per subnet ]]>