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Your microservices-based application is experiencing a small number of API requests that take an unusually long time to process. Since each request to the API can traverse multiple services, you need to identify which specific service is causing the delay in these instances. How should you proceed to diagnose the longest service latency?
Explanation:
The correct answer is D. Instrument your application with Stackdriver Trace in order to break down the request latencies at each microservice. Stackdriver Trace is a distributed tracing system that helps you understand the relationships between requests and the various microservices they traverse in your application. By using Stackdriver Trace, you can get a detailed breakdown of latencies at each microservice, which will help you identify which service is causing the delays. Options A, B, and C do not provide the same level of detail necessary to diagnose specific service latency issues.