A developer wants to monitor custom application metrics in real-time. Which approach is most appropriate?
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ACreate manual dashboards in the AWS Management Console
BInstall a third-party monitoring agent
CReview AWS Cost Explorer reports
DUse the CloudWatch PutMetricData API to send custom metrics
✓ Correct answer: D. Use the CloudWatch PutMetricData API to send custom metricsUsing the CloudWatch PutMetricData API allows developers to send custom metrics directly to CloudWatch, enabling real-time monitoring of application-specific data points.
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