Question 1

A complex microservices application running on GKE is experiencing intermittent high latency. The application consists of 15 different services written in Go and Java. Users report that the checkout process sometimes takes 5 seconds instead of the usual 200ms. You need to identify exactly which microservice is causing the bottleneck. Which GCP observability tool should you use?

Accepted Answer

Match the problem 'latency across multiple microservices' to the tool 'distributed tracing'. Cloud Trace is GCP's distributed tracing tool.

Question 2

What mistakes do candidates make on this GCP PCA question?

Accepted Answer

Confusing Cloud Trace with Cloud Profiler (A). Profiler looks *inside* a single program (e.g., which function is using the most CPU). Trace looks *across* multiple programs (e.g., Service A called Service B and waited 4 seconds).

How to approach this question

Full Answer

Common mistakes

Practice the full GCP Professional Cloud Architect Practice Exam 3

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