单项选择题
Which OSPF parameter controls the amount of time it takes to determine if a neighbor has failed?（）
A.A B.B C.C D.D
Which OSPF router will advertise a Type 2 network LSA f...
Which OSPF router will advertise a Type 2 network LSA for a broadcast network segment?（）
Which OSPF router type summarizes network advertisement...
Which OSPF router type summarizes network advertisements from one OSPF area into another?（）
Which type of router cannot exist within a stub area?（）...
Which type of router cannot exist within a stub area?（）
