JNCIS-ENT: Juniper Networks Certified Specialist – Enterprise Routing and Switching (2025) — Question 28

You have two OSPF routers forming an adjacency. R1 has a priority of 32 and a router ID of 192.168.1.2. R2 has a priority of 64 and a router ID of 192.168.1.1. The routers were started at the same time and all other OSPF settings are the default settings.
Which statement is correct in this scenario?

Answer options

• A. At least three routers are required for a DR/BDR election.
• B. Router IDs must match for an adjacency to form.
• C. R2 will be the BDR.
• D. R1 will be the BDR.

Correct answer: D

Explanation

In OSPF, the router with the highest priority becomes the Designated Router (DR) and the second highest becomes the Backup Designated Router (BDR). Since R2 has a higher priority than R1, R2 will be the DR and R1, having the lower priority, will be the BDR.