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← AZ-204
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mediummultiple choiceObjective-mapped

You are using Application Insights to monitor an ASP.NET Core web API. Users report that a specific endpoint is slow, but you cannot reproduce the issue in development. You need to identify which line of code is causing the delay in production. Which Application Insights feature should you use?

Question 1mediummultiple choice
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You are using Application Insights to monitor an ASP.NET Core web API. Users report that a specific endpoint is slow, but you cannot reproduce the issue in development. You need to identify which line of code is causing the delay in production. Which Application Insights feature should you use?

Full question →

Answer choices

Why each option matters

Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.

A

Distractor review

Use the Application Insights Map to visualize dependencies.

The Application Map shows dependencies and their health, but it does not provide code-level profiling to identify the exact line of code causing slowness.

B

Best answer

Enable Application Insights Profiler.

Correct. Profiler captures detailed execution traces for requests and shows the time spent in each method, enabling you to pinpoint the slow code path.

C

Distractor review

Use the Snapshot Debugger to capture debug snapshots on exceptions.

Snapshot Debugger is used to debug exceptions, not performance issues. It captures the state when an exception is thrown, not during normal execution.

D

Distractor review

Create a custom telemetry event in the slow endpoint to log timing data.

Custom telemetry can help track timing, but it requires manual instrumentation and does not provide automatic call stack traces at the code level.

Common exam trap

Common exam trap: answer the scenario, not the keyword

Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.

Technical deep dive

How to think about this question

This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.

KKey Concepts to Remember

  • Read the scenario before looking for a memorised answer.
  • Find the constraint that changes the correct option.
  • Eliminate answers that are true in general but not in this case.
  • Use explanations to understand the rule behind the answer.

TExam Day Tips

  • Underline the problem statement mentally.
  • Watch for words such as best, first, most likely and least administrative effort.
  • Review why wrong options are wrong, not only why the correct option is correct.

Related practice questions

Related AZ-204 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

AZ-204 fundamentals practice questions

Practise AZ-204 questions linked to AZ-204 fundamentals.

AZ-204 scenario practice questions

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AZ-204 troubleshooting practice questions

Practise AZ-204 questions linked to AZ-204 troubleshooting.

More questions from this exam

Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.

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Question 4

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Question 5

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Question 6

You are monitoring an Azure App Service using Application Insights. You notice that the server response time is high for certain requests. You need to drill down to see which external dependencies (like databases or APIs) are causing the delay. Which Application Insights feature should you use?

FAQ

Questions learners often ask

What does this AZ-204 question test?

Read the scenario before looking for a memorised answer.

What is the correct answer to this question?

The correct answer is: Enable Application Insights Profiler. — Application Insights Profiler captures detailed profiling traces for HTTP requests. It shows the call stack and how much time is spent in each method, allowing you to identify the specific line of code causing performance issues. It works in production by periodically sampling requests. It is the best tool for this scenario.

What should I do if I get this AZ-204 question wrong?

Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.

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