JNCIP-DC: Juniper Networks Certified Professional – Data Center (2023) — Question 24

You are building an IP fabric underlay for your data center. You are asked to ensure that the two spine devices are in the same AS (65000) while the six leaf devices are in a different AS (65512).
In this scenario, which two statements are correct by default? (Choose two.)

Answer options

• A. A leaf device will accept all BGP routes received from the spine that were originated from another leaf device.
• B. All BGP routes advertised by a leaf device will be accepted on the spine devices.
• C. All BGP routes advertised by a leaf device will be rejected on the spine devices.
• D. A leaf device will reject all BGP routes received from the spine that were originated from another leaf device.

Correct answer: B, D

Explanation

The correct answer is B and D. Option B is correct because spine devices are configured to accept routes from leaf devices, while option D is correct as leaf devices will not accept routes from other leaf devices when received from the spine, due to the different AS. Options A and C are incorrect because they misrepresent the route acceptance behavior in this topology.