You are managing a critical application hosted on OCI. To enhance security, you have enabled DNSSEC for your domain using OCI DNS. You want to…

Goal: Automate DNSSEC health monitoring with alerts.

Option A: Vulnerability Scanning is for compute instances, not DNSSEC—incorrect.

Option B: Monitoring Service tracks metrics and logs, supports custom DNSSEC metrics, and provides

alarms—correct.

Option C: Audit Service logs API calls, not DNSSEC health—incorrect.

Option D: Logging Analytics analyzes logs but lacks direct alerting—less effective than Monitoring.

Conclusion: Option B is the most effective for automated monitoring and alerts.

Oracle documentation notes:

"OCI Monitoring Service allows you to monitor metrics and logs, including DNSSEC-related data, and

set alarms for proactive notifications."

This supports Option B. Reference: Monitoring Overview - Oracle Help Center (docs.oracle.com/en-

us/iaas/Content/Monitoring/Concepts/monitoringoverview.htm).