AZ-900 Practice Question 49: Application Insights
Microsoft Azure Fundamentals (AZ-900) · Test 5 · question 9 of 10
A development team needs to see, for their live web application, which requests are slowest, which are failing, and how calls out to a downstream database are performing. What should they enable?
Show answer and explanation
Answer:
Application Insights is the application performance monitoring (APM) feature of Azure Monitor, and its views line up with the three requirements one for one: the Performance view reviews application performance metrics and potential bottlenecks, the Failures view identifies and analyses failures, and the Application map gives a visual overview of the architecture and how components interact, which is where downstream dependencies such as a database show up.
Option B, Service Health, reports Azure platform incidents and planned maintenance affecting the subscription; it will never tell you which of *your* requests are slow. Option C, Advisor, produces periodic best-practice recommendations derived from resource configuration and usage telemetry, useful advice, but not a live per-request view of an application. Option D, the secure score, measures security posture against recommended controls, which is a different axis from application performance altogether.
Reference: Application Insights overview