# Professional-Cloud-DevOps-Engineer — Question 424

**Type:** multiple_choice
**Topics:** topic_1

## Question

You support a Node.js application running on Google Kubernetes Engine (GKE) in production. The application makes several HTTP requests to dependent applications. You want to anticipate which dependent applications might cause performance issues. What should you do?

## Correct Answer

_See scenario._

## Explanation

Answer is B.

The keyword is "make several requests to dependent app". So you need trace for it.

Cloud Trace
Find performance bottlenecks in production.

Cloud Profiler
Continuous CPU and heap profiling to improve performance and reduce costs.

**Reference:** examtopics_top_comment

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Source: https://hiexam.net/q/google/Professional-Cloud-DevOps-Engineer/424  
Practice (tracked): https://hiexam.net/study/Professional-Cloud-DevOps-Engineer/practice