The two routers cannot establish an OSPF neighbor relationship. Which are the possible reasons? (Multiple choice)

The two routers cannot establish an OSPF neighbor relationship. Which are the possible reasons? (Multiple choice)
A . The authentication passwords configured by both parties are inconsistent
B. The Hello time intervals of both parties are inconsistent
C. The network type of both interfaces is P2P, and the DR election priority is changed to 0
D. By configuring silent-interface, the adjacent interfaces of both parties do not send protocol packets

View Answer

Answer: ABD