Quick Answer
The answer is the Dependency Duration metric. This is correct because Dependency Duration specifically measures the time your application spends waiting for external services like databases, APIs, or storage, making it the precise tool to analyze slow dependencies when diagnosing intermittent timeouts. In contrast, Request Duration captures the entire end-to-end request time, which can mask individual dependency delays, while Availability and Failed Requests track uptime and errors, not performance latency. On the AZ-204 exam, this question tests your understanding of Application Insights metrics for distributed tracing—a common trap is confusing total request time with dependency-specific timing. Remember that dependencies are the external calls your app makes, so Dependency Duration is the metric that isolates their performance. A helpful memory tip: think of “Dependency Duration” as the stopwatch for every external handshake your code makes.
This AZ-204 practice question tests your understanding of monitor, troubleshoot, and optimize azure solutions. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Your application running on Azure App Service is experiencing intermittent timeouts. You have configured Application Insights to collect telemetry. Which metric should you analyze in the Azure portal to identify the slowest dependencies?
Request Duration
Why wrong: Request Duration measures total request time, not individual dependency durations.
Failed Requests
Why wrong: Failed Requests counts errors, not durations.
Dependency Duration
Dependency Duration shows the time spent on external service calls.
Availability
Why wrong: Availability tracks uptime, not dependency performance.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Dependency Duration
Option C is correct because the 'Dependency Duration' metric in Application Insights shows the duration of calls to external dependencies. Option A is wrong because 'Request Duration' only measures the total time for requests, not specific dependencies. Option B is wrong because 'Availability' measures uptime, not performance. Option D is wrong because 'Failed Requests' tracks errors, not duration.
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.
Request Duration
Why it's wrong here
Request Duration measures total request time, not individual dependency durations.
Failed Requests
Why it's wrong here
Failed Requests counts errors, not durations.
Dependency Duration
Why this is correct
Dependency Duration shows the time spent on external service calls.
Related concept
Read the scenario before looking for a memorised answer.
Availability
Why it's wrong here
Availability tracks uptime, not dependency performance.
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.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
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.
Monitor, troubleshoot, and optimize Azure solutions — study guide chapter
Learn the concepts, then practise the questions
Monitor, troubleshoot, and optimize Azure solutions practice questions
Targeted practice on this topic area only
All AZ-204 questions
997 questions across all exam domains
Microsoft Azure Developer Associate AZ-204 study guide
Full concept coverage aligned to exam objectives
AZ-204 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise AZ-204 questions linked to Develop Azure compute solutions.
Practise AZ-204 questions linked to Develop for Azure storage.
Practise AZ-204 questions linked to Implement Azure security.
Practise AZ-204 questions linked to Connect to and consume Azure services and third-party services.
Practise AZ-204 questions linked to Monitor, troubleshoot, and optimize Azure solutions.
Practise AZ-204 questions linked to AZ-204 fundamentals.
Practise AZ-204 questions linked to AZ-204 scenario.
Practise AZ-204 questions linked to AZ-204 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
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: Dependency Duration — Option C is correct because the 'Dependency Duration' metric in Application Insights shows the duration of calls to external dependencies. Option A is wrong because 'Request Duration' only measures the total time for requests, not specific dependencies. Option B is wrong because 'Availability' measures uptime, not performance. Option D is wrong because 'Failed Requests' tracks errors, not duration.
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.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.