Question 750 of 997

Monitor Azure SQL Query Duration and Set Alerts

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.

You have an App Service app that uses Azure SQL Database. Users report that some queries are slow. You need to monitor query performance and receive alerts when the average query duration exceeds 1 second. Which two Azure services should you use?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

Application Insights

Application Insights (D) provides built-in SQL dependency tracking, enabling you to monitor individual query durations and set custom alerts on metrics like average query duration. Azure SQL Analytics (E) offers deep performance monitoring for Azure SQL Database, including query performance insights and the ability to configure alerts based on query duration thresholds. Together, they allow you to detect slow queries and trigger alerts when the average query duration exceeds 1 second.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Azure Advisor

    Why it's wrong here

    Azure Advisor provides best practice recommendations, not real-time monitoring.

  • Azure Monitor Alerts

    Why it's wrong here

    Alerts require a data source; they don't directly monitor SQL queries.

  • Azure Monitor Logs

    Why it's wrong here

    Azure Monitor Logs is a data store, not a direct monitoring solution for SQL query performance.

  • Application Insights

    Why this is correct

    Application Insights can track SQL dependency calls and set alerts on duration.

    Related concept

    Read the scenario before looking for a memorised answer.

  • Azure SQL Analytics

    Why this is correct

    Azure SQL Analytics provides detailed query performance metrics and monitoring.

    Related concept

    Read the scenario before looking for a memorised answer.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often choose Azure Monitor Alerts alone, forgetting that it requires a metric or log source like Application Insights or Azure SQL Analytics to actually capture the query duration data.

Detailed technical explanation

How to think about this question

Application Insights uses the SQL dependency telemetry module to automatically capture query execution times, SQL Server instance names, and database names via the .NET SDK's `SqlClient` instrumentation. Azure SQL Analytics leverages the `sys.dm_exec_query_stats` DMV and Query Store to aggregate query performance metrics, enabling historical analysis and alerting on average duration, CPU time, and logical I/O. In a real-world scenario, you would configure an Application Insights alert rule on the `dependencies/duration` metric with a threshold of 1000 ms, and use Azure SQL Analytics to drill into the specific queries causing the slowdown.

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.

TExam Day Tips

  • 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.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Real-world example

How this comes up in practice

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

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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FAQ

Questions learners often ask

What does this AZ-204 question test?

Monitor, troubleshoot, and optimize Azure solutions — This question tests Monitor, troubleshoot, and optimize Azure solutions — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Application Insights — Application Insights (D) provides built-in SQL dependency tracking, enabling you to monitor individual query durations and set custom alerts on metrics like average query duration. Azure SQL Analytics (E) offers deep performance monitoring for Azure SQL Database, including query performance insights and the ability to configure alerts based on query duration thresholds. Together, they allow you to detect slow queries and trigger alerts when the average query duration exceeds 1 second.

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

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jul 4, 2026

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