Google Cloud Professional Cloud Network Engineer — Question 228

Your organization has implemented Vertex AI online prediction in your Google Cloud environment, which is in the us-central1 region. Online prediction is available through private services access by using the IP CIDR range of 172.16.53.0/24. You need to configure access to Vertex AI without affecting the existing routes. You want to use the VLAN attachments that are located in the us-west1 region as primary. The interconnect VLAN attachments in the us-west2 region can only be used as a backup. What should you do?

Answer options

• A. Create a custom route advertisement on VLAN attachments in the us-west1 region for prefix 172.16.53.0/24. Create a custom route advertisement on VLAN attachments in the us-west2 region for prefix 172.16.53.0/24.
• B. Create a custom learned route on VLAN attachments in the us-west1 region for prefix 172.16.53.0/24, and set the route priority on the BGP session as 100. Create a custom route advertisement on VLAN attachments in the us-west2 region for prefix 172.16.53.0/24, and set the route priority on the BGP session as 200.
• C. Create a custom route advertisement on VLAN attachments in the us-west1 region for prefix 172.16.53.0/24, and set the route priority on the BGP session as 100. Create a custom route advertisement on VLAN attachments in the us-west2 region for prefix 172.16.53.0/24, and set the route priority on the BGP session as 200.
• D. Create a custom route advertisement on VLAN attachments in the us-west1 region for prefix 172.16.53.0/24, and create a BGP route-policy to set the multi-exit discriminator (MED) to 100. Create a custom route advertisement on VLAN attachments in the us-west2 region for prefix 172.16.53.0/24, and create a BGP route-policy to set the multi-exit discriminator (MED) to 200.

Correct answer: C

Explanation

Option C is correct because it establishes the necessary route advertisements with appropriate priority settings on both VLAN attachments, ensuring that the us-west1 region is prioritized. Options A and D do not correctly assign route priorities needed for effective routing, while option B incorrectly suggests using a learned route instead of an advertisement for the us-west1 region.