JNCIS-SP: Juniper Networks Certified Specialist – Service Provider Routing (2022) — Question 54

According to Juniper Networks, what are two reasons to peer using loopback addresses when configuring BGP? (Choose two.)

Answer options

• A. When establishing an IBGP connection
• B. When routers are not in the same autonomous system
• C. When routers are not directly connected
• D. When establishing a single-link EBGP connection

Correct answer: A, C

Explanation

Using loopback addresses is beneficial for establishing IBGP connections, as it allows for stable and consistent endpoint addressing. Additionally, using loopback addresses can be advantageous when routers are not directly connected, allowing BGP sessions to remain up even if the physical link goes down. The other options are incorrect because they either refer to scenarios that do not require loopback addressing or describe configurations that do not apply to BGP peering.