What should you use?

You have a multi-tier application. The front end of the application is hosted in Azure App Service.

You need to identify the average load times of the application pages.

What should you use?
A . Azure Application Insights
B. the activity log of the App Service
C. the diagnostics logs of the App Service
D. Azure Advisor

Answer: A

Explanation:

Application Insights will tell you about any performance issues and exceptions, and help you find and diagnose the root causes.

Application Insights can monitor both Java and ASP.NET web applications and services, WCF services. They can be hosted on-premises, on virtual machines, or as Microsoft Azure websites.

On the client side, Application Insights can take telemetry from web pages and a wide variety of devices including iOS, Android, and Windows Store apps.

Reference: https://docs.microsoft.com/en-us/azure/azure-monitor/app/web-monitor-performance