What action does Dynatrace take when the performance of a specific request degrades?

When the performance of a specific request degrades, Dynatrace raises an alert to notify users or administrators of the issue. This proactive measure is integral to its monitoring capabilities, as it allows for immediate visibility into performance problems. By generating alerts, Dynatrace helps teams quickly identify and address issues before they escalate, minimizing potential negative impacts on user experience and application functionality. The alerting mechanism allows teams to respond promptly to performance changes, facilitating effective management and resolution of performance-related incidents.

The other options do not accurately reflect the immediate actions Dynatrace is designed to take in response to performance degradation. For example, polling user feedback is more about gathering insights after the fact, rather than addressing a performance issue in real-time. Muting all requests would disrupt normal operations rather than isolate the problem, and shutting down the service is an extreme measure that would result in loss of availability, which is not in line with the goal of maintaining application performance and uptime.