Google Cloud Professional Cloud Network Engineer — Question 201

Your organization's on-premises networking team is reporting frequent BGP session flaps toward your Google Cloud environment. You need to review the BGP configuration. What should you do?

Answer options

• A. Switch to static routing.
• B. Increase the BGP hold timer to 36000 seconds max.
• C. Ensure that graceful restart is enabled on the on-premises router.
• D. Ask the on-premises team to enable Bidirectional Forwarding Detection (BFD).

Correct answer: D

Explanation

The correct answer is D because enabling Bidirectional Forwarding Detection (BFD) helps to quickly detect failures in the BGP session, thus reducing session flaps. Options A and B do not address the underlying issue of session stability, and option C, while helpful, does not provide the same rapid failure detection capabilities that BFD offers.