You have configured a router with the following command. However, when you enter show ip routes you do not see any routes for OSPF. What is the problem?

Router(config)#router ospf 255
Router(config-router)#network 10.0.0.0 255.0.0.0 area 255

A. The process ID is incorrect.
B. The area number is incorrect.
C. The wildcard mask is incorrect.
D. The network ID is incorrect.

C. The wildcard mask is incorrect because it is a bitmask, which is the opposite of a subnet mask. The 1s in the host section, rather than 1s in the network section, define the wildcard. The correct wildcard mask is 0.0.0.255 for this configuration.