Which resource provides a monitoring service in the Oracle Cloud Free Tier?

The resource that provides a monitoring service in the Oracle Cloud Free Tier is OCI Monitoring. This service is essential for tracking the performance and health of various resources within the Oracle Cloud Infrastructure. It allows users to create alarms and notifications based on specific metrics, which helps manage cloud resources efficiently by responding quickly to issues.

OCI Monitoring offers capabilities such as data collection from different services, visualization of metrics, and a dashboard to present performance data. This monitoring is integral for maintaining optimal performance and reliability of applications running in the cloud. The inclusion of this service in the Free Tier highlights Oracle's commitment to providing essential infrastructure management tools without cost, enabling users to learn and experiment with cloud resources.

By focusing on OCI Monitoring, users can better understand their resource utilization, performance trends, and any potential issues, thus ensuring that their applications are running smoothly and within desired parameters.