Which OSPF networks types are compatible and allow communication through the two peering devices?

Which OSPF networks types are compatible and allow communication through the two peering devices?
A . broadcast to nonbroadcast
B . point-to-multipoint to nonbroadcast
C . broadcast to point-to-point
D . point-to-multipoint to broadcast

View Answer

Answer: A

Explanation:

The following different OSPF types are compatible with each other:

+ Broadcast and Non-Broadcast (adjust hello/dead timers)

+ Point-to-Point and Point-to-Multipoint (adjust hello/dead timers)

Broadcast and Non-Broadcast networks elect DR/BDR so they are compatible. Point-topoint/ multipoint do not elect DR/BDR so they are compatible.