Microsoft Certified: Azure Fundamentals (AZ-900) Practice Exam

Which service monitors the availability, performance, and usage of web applications?

1. Azure Service Health

2. Azure Monitor

3. Compliance Manager

4. Application Insights

The correct answer is: Application Insights

Application Insights is the correct choice as it is specifically designed to monitor the availability, performance, and usage of web applications. This service provides developers and IT professionals with powerful insights into how their applications are performing in real-time, allowing them to detect issues, diagnose them, and improve their application's performance and user experience. Application Insights tracks a wide range of metrics, including response times, failure rates, and the number of user sessions, ensuring that you can evaluate how well your application is functioning and identify any areas that may require improvement. This service is deeply integrated with various development tools and supports various platforms, making it an essential part of application lifecycle management. Azure Monitor, while it provides monitoring capabilities across various Azure services, is broader in scope and covers much more than just web applications. It serves as a comprehensive solution for monitoring and managing Azure resources at a high level. Azure Service Health provides insight into the health of Azure services and alerts users about incidents and issues affecting Azure resources, but it does not focus specifically on individual web applications. Compliance Manager helps organizations manage compliance requirements and data protection standards, but it does not monitor application performance or usage. Therefore, Application Insights stands out as the most suitable service to monitor web applications specifically.