Free AWS Certified Developer Associate DVA-C02 Practice Question

The correct service intended for publishing user-defined data points is CloudWatch. It offers the capabilities for monitoring resources and applications running on the cloud, including the utility for developers to publish their own custom metrics, enabling detailed insight into their applications' performance and health. Lambda is a compute service that executes code in response to events, does not itself publish metrics. S3 is object storage used for storing and protecting data, but it relies on other services like CloudWatch for monitoring. EC2 provides resizable compute capacity and produces metrics, but it would depend on the integration with CloudWatch to publish custom metrics.