Which three are Oracle-recommended best practices for Autonomous Database alarms? (Choose three.)

Oracle recommends several best practices for managing alarms effectively within the OCI Monitoring service, which is used by Autonomous Database. These include suppressing alarms during planned maintenance or active investigations to prevent unnecessary notifications and reduce noise. It is also crucial to select an appropriate alarm interval; a short interval can lead to false positives for volatile metrics, while a long one can delay alerts for critical issues. Finally, alarms should be routinely tuned by adjusting thresholds and other parameters to reflect changes in workload patterns and system behavior, ensuring they remain relevant and effective over time.

B. Create multiple alarm metrics: While you create alarms on various metrics, this describes a basic setup action rather than a specific best practice for optimizing alarm management and reducing alert fatigue.

1. Oracle Cloud Infrastructure Documentation

"Best Practices for Your Alarms". This official guide explicitly lists the following as best practices:

"Select the correct alarm interval for your metric." (Matches option C)

"Routinely tune your alarms." (Matches option D)

"Suppress alarms during investigations." (Matches option A)