JNCIS-SP: Juniper Networks Certified Specialist – Service Provider Routing (2021) — Question 8

You want to save adjacency formation time between two routers participating in OSPF, as well as reduce the size of the OSPF link-state database.
How would you accomplish these tasks?

Answer options

• A. Configure a virtual link.
• B. Specify a designated router.
• C. Specify a backup designated router.
• D. Define a point-to-point connection.

Correct answer: B

Explanation

Choosing to specify a designated router (B) helps streamline OSPF communications by reducing the number of adjacencies needed on a multi-access network, thus enhancing adjacency formation time and decreasing the link-state database size. The other options do not directly address these objectives: a virtual link (A) is used for connectivity, a backup designated router (C) serves as a failover, and a point-to-point connection (D) does not optimize multi-access scenarios.