AZ-204 Practice Question: Monitor, troubleshoot, and optimize Azure solutions
This AZ-204 practice question tests your understanding of monitor, troubleshoot, and optimize azure solutions. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: application Insights collects application performance telemetry.. 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.
A developer needs to run a Kusto query against application request data to identify 95th percentile latency by operation. Where should the query be run?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Logs in Application Insights or the associated Log Analytics workspace
Application Insights stores application request data, including latency metrics, and supports Kusto queries via its Logs blade. The associated Log Analytics workspace also provides the same query capabilities, making it the correct location to run a Kusto query for 95th percentile latency by operation.
Entra audit logs track identity events, not application performance telemetry.
✗
Azure Key Vault diagnostic settings
Why it's wrong here
Key Vault logs do not contain application request latency.
✗
Azure Resource Graph only
Why it's wrong here
Resource Graph queries Azure resource metadata, not application request telemetry.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse Azure Resource Graph with Log Analytics, but Resource Graph only queries Azure resource properties and configurations, not application telemetry data.
Detailed technical explanation
How to think about this question
The Kusto query for 95th percentile latency typically uses the `percentile()` aggregation function on the `duration` column of the `requests` table in Application Insights. The query can be run directly in the Application Insights portal or in the linked Log Analytics workspace, which shares the same data store and query engine. This approach leverages the underlying Azure Data Explorer (ADX) engine for efficient time-series analysis.
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-204 question in full detail.
Review application Insights collects application performance telemetry., then practise related AZ-204 questions on the same topic to reinforce the concept.
Monitor, troubleshoot, and optimize Azure solutions — This question tests Monitor, troubleshoot, and optimize Azure solutions — Application Insights collects application performance telemetry..
What is the correct answer to this question?
The correct answer is: Logs in Application Insights or the associated Log Analytics workspace — Application Insights stores application request data, including latency metrics, and supports Kusto queries via its Logs blade. The associated Log Analytics workspace also provides the same query capabilities, making it the correct location to run a Kusto query for 95th percentile latency by operation.
What should I do if I get this AZ-204 question wrong?
Review application Insights collects application performance telemetry., then practise related AZ-204 questions on the same topic to reinforce the concept.
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