JNCIS-ENT: Juniper Networks Certified Specialist – Enterprise Routing and Switching (2025) — Question 12

You are a network operator who wants to add a second ISP connection and remove the default route to the existing ISP. You decide to deploy the BGP protocol in the network.
What two statements are correct in this scenario? (Choose two.)

Answer options

• A. IBGP updates the next-hop attribute to ensure reachability within an AS.
• B. IBGP peers advertise routes received from EBGP peers to other IBGP peers.
• C. IBGP peers advertise routes received from IBGP peers to other IBGP peers.
• D. EBGP peers advertise routes received from IBGP peers to other EBGP peers.

Correct answer: B, D

Explanation

The correct answers are B and D. IBGP peers do not advertise routes from EBGP peers to other IBGP peers, which makes option B true, while option D is correct because EBGP peers can share routes they receive from IBGP peers with other EBGP peers. Options A and C are incorrect because they misrepresent the behavior of IBGP in route advertisement.