Quick Answer
The answer is Exceptions telemetry. This is the correct choice because Application Insights Exceptions telemetry captures unhandled exceptions along with their full stack traces, which directly reveals the root cause of HTTP 500 errors in a Node.js application, whereas requests telemetry only marks success or failure without details, and traces or dependencies telemetry may miss the error entirely. On the Microsoft Azure Developer Associate AZ-204 exam, this question tests your ability to map telemetry types to specific troubleshooting scenarios, a common trap being to confuse requests telemetry (which shows the error occurred) with exceptions telemetry (which shows why it occurred). A strong memory tip is to think of HTTP 500 as a symptom, not a cause—exceptions are the doctor’s diagnosis, while requests are just the patient’s chart.
This AZ-204 practice question tests your understanding of monitor, troubleshoot, and optimize azure solutions. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
You are troubleshooting an Azure App Service that runs a Node.js application. The application returns HTTP 500 errors intermittently. Application Insights is configured. Which telemetry item should you examine first to find the root cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Exceptions
Exceptions telemetry captures detailed error information.
Traces
Why wrong: Traces are custom log messages, may not capture exceptions.
Dependencies
Why wrong: Dependencies track external calls, not application errors.
Requests
Why wrong: Requests show success/failure but not exception details.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Exceptions
Option D is correct because exceptions telemetry captures unhandled exceptions and stack traces. Option A (traces) may not include errors. Option B (requests) shows success/failure but not details. Option C (dependencies) shows external calls.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Exceptions
Why this is correct
Exceptions telemetry captures detailed error information.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Traces
Why it's wrong here
Traces are custom log messages, may not capture exceptions.
Dependencies
Why it's wrong here
Dependencies track external calls, not application errors.
Requests
Why it's wrong here
Requests show success/failure but not exception details.
Common exam traps
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.
Trap categories for this question
Command / output trap
Requests show success/failure but not exception details.
Detailed technical explanation
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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Identify which AZ-204 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Monitor, troubleshoot, and optimize Azure solutions — This question tests Monitor, troubleshoot, and optimize Azure solutions — Read the scenario before looking for a memorised answer..
The correct answer is: Exceptions — Option D is correct because exceptions telemetry captures unhandled exceptions and stack traces. Option A (traces) may not include errors. Option B (requests) shows success/failure but not details. Option C (dependencies) shows external calls.
Identify which AZ-204 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
This AZ-204 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AZ-204 exam.
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