单项选择题
Which OSPF router will advertise a Type 2 network LSA for a broadcast network segment?（）
A.A B.B C.C D.D
单项选择题 Which OSPF router type summarizes network advertisements from one OSPF area into another?（）
单项选择题 Which type of router cannot exist within a stub area?（）
单项选择题 Which OSPF area type allows for the flooding of a Type 7 LSA?（）
