Exam Professional Cloud DevOps Engineer topic 1 question 198 discussion

Actual exam question from Google's Professional Cloud DevOps Engineer

Question #: 198
Topic #: 1

[All Professional Cloud DevOps Engineer Questions]

You manage a microservice that provides a public-facing API (Service A). Service A is time-critical and has a response SLO of 500 ms. Service A makes synchronous calls to internal API (Service B) that is known to become unreliable under heavy load, resulting in connection timeout errors or 500 errors. Service B is used to collect request information for the transactions processed by Service A. You need to mitigate the impact of Service B issues on your Service A users. What should you do?

A. Increase the size of the queue in front of the thread pool used by Service A instances.
B. Implement retry logic with exponential back-offs when calling Service B.
C. Implement a circuit breaker to store the request data in a database.
D. Implement rate limiting in Service A to limit the number of requests to Service B.

Show Suggested Answer

Suggested Answer: C 🗳️

by Duke_CT at June 3, 2025, 4:53 p.m.

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Duke_CT

1 week, 5 days ago

Selected Answer: A

Its probably A Or C

upvoted 1 times

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