Which of the following is not a capability of Dynatrace for monitoring Node.js applications?

Real-time user monitoring is not a capability provided by Dynatrace specifically for monitoring Node.js applications. In the context of application performance management, Dynatrace focuses on backend performance, including aspects such as memory utilization, CPU usage, and event loop activity, which are integral to implementing effective performance monitoring for Node.js applications.

Heap dumps are crucial for diagnosing memory leaks and performance issues, enabling developers to analyze memory usage effectively. CPU sampling is vital to understanding how CPU resources are being allocated and utilized by various parts of the Node.js application. Event loop metrics provide insights into the performance of asynchronous operations, helping to identify any blocking operations that may hinder application responsiveness.

While real-time user monitoring is essential for overall web application monitoring, it typically pertains more to front-end user experience rather than system performance metrics specific to the backend Node.js environment. Thus, while Dynatrace does support full-stack monitoring, it is most recognized for its backend capabilities when it comes to Node.js applications, not real-time user monitoring.