正解:A
In OSPF (Open Shortest Path First) configuration, the 'network' command is used to specify which interfaces will participate in OSPF, and to define the area assignment for those interfaces. The correct syntax for the
'network' command includes the network address followed by a wildcard mask, and then the area ID.
In this case, GigabitEthernet 0/1 has an IP address of 10.10.1.1 with a subnet mask of 255.255.255.0, which corresponds to a wildcard mask of 0.0.0.255 (the inverse of the subnet mask). Since we want this interface to participate in Area 0, as indicated by the exhibit showing it within Area 0's boundary, option A is correct.