Which of the following address ranges is not listed in RFC 1

Which of the following address ranges is not listed in RFC 1918?

A. 10.0.0.0 to 10.255.255.255

B. 172.16.0.0 to 172.31.255.255

C. 172.16.0.0 to 172.63.255.255

D. 192.168.0.0 to 192.168.255.255

Solution

Answer: C. 172.16.0.0 to 172.63.255.255

RFC 1918 sets aside three blocks of IP addresses for private or internal use:

A Class A range : 10.0.0.0 to 10.255.255.255

A Class B range : 172.16.0.0 to 172.31.255.255

A Class C range : 192.168.0.0 to 192.168.255.255