Which configuration on XR2 provides R1 with only the minimum routing information to reach the rest of the network?
| A. |
Router isis ABC
interface GigabitEthernet0/0/0/1
circuit-type level-2-only
| |
| B. |
Router isis ABC
interface GigabitEthernet0/0/0/0
circuit-type level-1-2
| |
| C. |
Router isis ABC
interface GigabitEthernet0/0/0/1
circuit-type level-1
| |
| D. |
Router isis ABC
interface GigabitEthernet0/0/0/0
circuit-type level-1
|