单项选择题
A. The neighbor's advertised distance must be less than or equal to the feasible distance of the current successor.
B. The neighbor's advertised distance must be less than the f easible distance of the current successor.
C. The neighbor's advertised distance must be greater than the feasible distance of the current successor.
D. The neighbor's advertised distance must be equal to the feasible distance of the current successor .
E. The neighbor's advertised distance must be greater than or equal to the feasible distance of the current successor.
单项选择题 You are developing a verification plan for an upcoming OSPF implementation. Part of this plan is to verify the status of type 3 LSAs within the network. Which routers should you verify first to ensure that the configuration s are correct for generating type 3 LSAs?（）
单项选择题 When verifying OSPF virtual link problems, which is an important item to check on the two transit OSPF routers?（）
多项选择题 When verifying the OSPF link state database, which type of LSAs should you expect to see within the different OS PF area types?（）