Which of the following is the broadcast address for a Class B network ID using the default subnetmask?

A) 172.16.10.255

B) 172.255.255.255

C) 172.16.255.255

D) 255.255.255.255

Correct Answer : 172.16.255.255

Explanation : In this case, the class B network ID is 172.16.0.0. We know that the default mask of a class B network is 255.255.0.0. If we OR any address in a network with the complement of the default mask (0.0.255.255), we get the broadcast address of the network. In this case, the result of OR would be 172.16.255.255.