In an OSPF network when are DR and BDR elections required?
- when all the routers in an OSPF area cannot form adjacencies
- when the two adjacent neighbors are in two different networks
- when the routers are interconnected over a common Ethernet network
- when the two adjacent neighbors are interconnected over a point-to-point link
Answers Explanation & Hints: When the routers are interconnected over a common Ethernet network, then a designated router (DR) and a backup DR (BDR) must be elected.