Google Professional Cloud Network Engineer Question 681
Select 2Google Cloud PlatformYou are configuring Bidirectional Forwarding Detection (BFD) on a Google Cloud deployment to enable rapid failure detection for a hybrid cloud setup with an on-premises data center. Which steps must you take to ensure BFD operates properly on the Cloud Router? (Choose two)
- A
Enable BFD on the Cloud Router and configure BFD intervals and multiplier values.
- B
Configure BFD on both the Cloud Router and the on-premises router to ensure compatibility.
- C
Enable BFD only on the on-premises router, as Cloud Router automatically detects BFD configurations.
- D
Use a static routing table because BFD does not work with dynamic routing protocols on Cloud Router.
- E
Ensure that the on-premises router supports BFD and has compatible interval and multiplier settings.
Show answer and explanation
Correct answers: A, B
Explanation
Bidirectional Forwarding Detection (BFD) is a mechanism used to detect link failures quickly in network environments. In a hybrid cloud setup, BFD must be configured both on the Cloud Router and the on-premises router. This includes enabling BFD, configuring interval and multiplier settings, and ensuring compatibility between the two devices. These steps ensure rapid failure detection and minimize downtime in the hybrid network.
- A. Correct.
Correct: BFD must be explicitly enabled on the Cloud Router, and you must configure the desired BFD intervals and multiplier values for it to function properly.
- B. Correct.
Correct: For BFD to work, it must be configured on both the Cloud Router and the on-premises router. This ensures proper communication and compatibility between the two endpoints.
- C. Incorrect.
Incorrect: BFD must be enabled and configured on both routers. The Cloud Router does not automatically detect or enable BFD configurations from the on-premises router.
- D. Incorrect.
Incorrect: BFD works with dynamic routing protocols, such as BGP, on Cloud Router. Static routing is not a requirement for BFD in this scenario.
- E. Incorrect.
Incorrect: While it is important for the on-premises router to support BFD, this step alone is insufficient. You must also configure BFD on both routers.