AWS Certified Developer Associate DVA-C02 Practice Question
A developer is running a custom application on an Amazon EC2 instance. The application processes video files and needs to track the processing time for each file to monitor performance. The developer wants to publish this custom data as a metric, create alarms based on it, and visualize it in a dashboard. Which AWS service should the developer use to publish and monitor these custom data points?
The correct service for publishing user-defined data points is Amazon CloudWatch. It offers capabilities for monitoring resources and applications, including the utility for developers to publish their own custom metrics via the PutMetricData API call or the CloudWatch Agent. This enables detailed insight into application performance and health. While Lambda, S3, and EC2 all generate their own metrics, CloudWatch is the central service designed to ingest, store, and visualize custom metric data from any source, including an application running on an EC2 instance.
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AWS Certified Developer Associate DVA-C02
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