Exam Professional Cloud Developer topic 1 question 180 discussion

This approach is recommended by Google because it allows you to decouple the consumers of your APIs from the specific backend services that are providing those APIs. This makes it easier to scale your application and to make changes to your APIs without impacting the consumers.

Ingress or Nginx service that routes ( reverse proxy ) to the appropriate urls is a best solution.

https://cloud.google.com/kubernetes-engine/docs/concepts/ingress#deprecated_annotation https://cloud.google.com/kubernetes-engine/docs/concepts/ingress#features_of_https_load_balancing Answer A

B,C, and D can be eliminated B. Service discovery only works within the cluster itself, so external clients can't use it C. Using multiple clusters is an overkill, you can deploy multiple version of the same service within a single cluster D. Passing the API version in the request body is not a REST best practice The best practice is to pass the version of the API in the the URL path, e.g /v1/foo, /v2/foo Using this approach, you can route requests to the appropriate backend service within the GKE cluster using an Ingress resource, which is option A.

D is the answer.