Exam Professional Cloud Architect topic 1 question 137 discussion

It is C

Answer C All Google API interfaces must provide a major version number, which is encoded at the end of the protobuf package, and included as the first part of the URI path for REST APIs. If an API introduces a breaking change, such as removing or renaming a field, it must increment its API version number to ensure that existing user code does not suddenly break.

Use a versioning strategy for the APIs that increases the version number on every backward-incompatible change.

Breaking changes = version bump in the API url

Answer is A Question asks: You are responsible for the API lifecycle and want to ensure stability for your customers in case the API makes backward-incompatible changes. Option C is a must for the API lifecycle but doing only that will not help your customers. In my opinion they have to be notified of backward-incompatible changes with time enough to stay ready

This is not a GCP-specific or even cloud-specific question, but a development best practice. No need to look at other options.

I had a test today. The overall question was almost the same, but question mentioned Apigee.

C is correct

Maybe A on top of C but are we really going to mandate customers only have 1 month to be ready? I don't think so, use the version strategy and let them migrate when ready!

Anyways option A is also a recommended best practice. Its version incompatible change afterall.

Clearly C

c version numbers cannot be changed as given in d

The correct answer is: C. Use a versioning strategy for the APIs that increases the version number on every backward-incompatible change. A versioning strategy for the APIs that increases the version number on every backward-incompatible change is the best way to ensure stability for your customers in case the API makes backward-incompatible changes. This will allow you to track the changes that have been made to the API and allow your customers to easily identify the latest version of the API.

See @seafranek comment

If 'A' is the correct answer, one would wonder why. The new version might be back-ward incompatible but does not necessarily mean its a breaking one. In that case A might be sufficient, although C remains mandatoryBest Practice imho.

C is the correct answer

C is ok