Google Cloud Certified Associate Cloud Engineer Practice

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Google Cloud Certified Associate Cloud Engineer Exam with flashcards and multiple choice questions. Each question includes hints and explanations to help you study effectively. Get ready to pass your certification exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Why might a Google Cloud Pub/Sub subscription not receive messages from a topic?

Insufficient subscriber IAM permissions for the subscription.
Message encryption incompatibility between topic and subscription.
Network connectivity issues affecting message delivery.
Subscription configured with an acknowledgment deadline shorter than message processing time.

The correct answer is: Subscription configured with an acknowledgment deadline shorter than message processing time.

A Google Cloud Pub/Sub subscription may not receive messages from a topic because the subscription has been configured with an acknowledgment deadline that is shorter than the time needed to process the incoming messages. This means that the subscription automatically acknowledges receiving a message before the application has finished processing it, leading to the message being lost. The other options are incorrect because A: This option refers to IAM permissions, which are not related to the communication between topic and subscription. B: This option suggests that the encryption used by the topic and subscription are not compatible, but this would result in an error message rather than a loss of messages. C: Network connectivity issues can affect communication between topic and subscription, but in this case, messages would still be received by the subscription, just at a slower rate or with potential delays. Therefore, the correct option is D, as a mismatch in the acknowledgment deadline and message processing time can lead to a subscription not receiving messages from a topic.