Which type of OSPF network will elect a backup designated router?
1. Broadcast multi-access
2. Non-broadcast multi-access
3. Point-to-point
4. Broadcast multipoint

A. 1 and 2

B. 3 and 4

C. 3 only

D. None of the above

Answer: Option A

Solution(By Examveda Team)

DR and BDR are elected on broadcast and non-broadcast multi-access networks. Frame Relay is a non-broadcast multi-access (NBMA) network by default. No DR is assigned on any type of point-to-point link. No DR/BDR is assigned on the NBMA point-to-multipoint due to the hub/spoke topology.