Question

What is the valid host range the IP address 172.16.10.22.255.255.255.240 is a part of?

• A. 172.16.10.20 through 172.16.10.22
• B. 172.16.10.1 through 172.16.10.255
• C. 172.16.10.16 through 172.16.10.23
• D. 172.16.10.17 through 172.16.10.31
• E. 172.16.10.17 through 172.16.10.30

Answer 1

The correct option is E 172.16.10.17 through 172.16.10.30

First start by using the 256 mask, which in this case is 256-240=16. The first subnet is 16; the second subnet is 32. This hast must be in the 16 subnet; the broadcast address is 31 and the valid hast range is 17-30.