B is the answer.
https://learn.microsoft.com/en-us/azure/azure-monitor/app/app-insights-overview?tabs=net
Application Insights is an extension of Azure Monitor and provides Application Performance Monitoring (also known as “APM”) features. APM tools are useful to monitor applications from development, through test, and into production in the following ways:
- Proactively understand how an application is performing.
- Reactively review application execution data to determine the cause of an incident.
I thought they do not change the exists source code(also modify functions), however they just need to import app insight library to their code. Then, it automatically inject function to monitor transaction between functions.
Answer:
B. Azure Application Insights
Explanation:
Azure Application Insights is an extensible Application Performance Management (APM) service for web developers. It provides real-time, detailed insights into application performance and failures, making it a suitable choice for analyzing the performance of different transactions within App2, as required. Plus, it doesn't require changes to the application code. Other options are either not relevant or not specifically geared towards application performance monitoring.
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