Final answer:
Threshold levels set by Dynatrace should be adjusted when there's a sudden spike in traffic, during infrastructure upgrades, or during seasonal variations in usage. These adjustments are important to maintain accurate monitoring and alerts for the system's performance.
Step-by-step explanation:
You would adjust the threshold levels that are automatically set by Dynatrace in several situations, including:
- b) When there's a sudden spike in traffic: Adjusting thresholds helps to distinguish between expected fluctuations in traffic and actual performance issues.
- c) When the infrastructure undergoes upgrades: Changes in the infrastructure could alter application performance, necessitating a thresholds review to ensure accurate monitoring.
- d) When there are seasonal variations in usage: Predictable changes in traffic, like those during holiday sales or major events, require revised thresholds to prevent false alerts.
Regular maintenance (option a) typically does not require adjustments to threshold levels unless these maintenance activities result in significant changes in expected traffic or performance patterns.