Exam Professional Cloud Architect topic 1 question 181 discussion

Actually C is correct but Wrong also in a way .. Sink cannot trigger a cloud function directly. It need Pub/Sub which then will trigger Cloud Function.

The correct answer is C: Set up a Cloud Monitoring sink that triggers the Cloud Function after an instance removal log message arrives in Cloud Logging. In this scenario, you want to ensure that the commands in the shutdown script are run reliably every time an instance is shut down. One way to do this is by setting up a Cloud Monitoring sink that triggers a Cloud Function after an instance removal log message arrives in Cloud Logging. This will allow you to use the Cloud Function to perform the necessary tasks (such as removing database entries) when an instance is shut down, and it will ensure that these tasks are performed reliably and consistently. Option A: Modifying the shutdown script to wait for 30 seconds before triggering the Cloud Function is not a reliable solution, as it relies on the shutdown script being able to run for at least 30 seconds before the instance is shut down.

I'll go for C, even though this scenario should be handled in another way. The reason why REDIS entries are still persisted is possibly caused by the application shutdown being not handled correctly. The shutdown script should first wait for the APP shutdown and only after that trigger the REDIS removal (cloud function). Using cloud monitoring to intercept this situation is an option, but a bit of overkill in my opinion. I would better modify the shutdown script and the app shutdown procedure and only then triggering a CF. Too bad there is no option for this :)

You cannot trigger a Cloud Function directly from a Cloud Monitoring sink. Instead, you can set up a Cloud Monitoring alert that sends notifications to a Pub/Sub topic, and then trigger the Cloud Function from that Pub/Sub topic.

Option C is not an efficient way as it causes delay and complexity. on top of that, you wont be able to trigger a cloud function. Correct answer is option D.

cCorrect Ans is C

Correct Ans is C

C Is the Correct Answer

C is ok

C is the right answer

c is correct

C is right

use pub/sub trigger cloud function

C is the answer as shutdown script is run based on best effort and not a reliable method. https://cloud.google.com/compute/docs/shutdownscript#limitations Compute Engine executes shutdown scripts only on a best-effort basis. In rare cases, Compute Engine cannot guarantee that the shutdown script will complete.

C would be the cleanest solution. Although at this time, Cloud Monitoring sink cannot trigger a cloud function directly, it can be done via Pub/Sub. Still better than solution D.

C is the correct answer

C looks not a professional way, but can make sure the work being done.