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

C. RFC 1918 specifies the addresses that are to be used for private address schemes. Addresses 172.16.0.0 to 172.63.255.255 are not part of the specified range; therefore, answer C is the correct choice. Answers A, B, and D are incorrect because RFC 1918 specifies 10.0.0.0 to 10.255.255.255, 172.16.0.0 to 172.31.255.255, and 192.168.0.0 to 192.168.255.255.