Which of the following network types have a designated router and a backup designated router assigned?
1. Broadcast
2. Point-to-point
3. NBMA
4. NBMA point-to-point

A. 1, 2 and 3

B. 1 and 3

C. 3 and 4

D. All of the above

Answer: Option B

Solution(By Examveda Team)

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. 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.