Crucial Exams

AWS Certified Developer Associate DVA-C02 Practice Question

A development team is monitoring an AWS Lambda function that processes items from an Amazon DynamoDB stream. Some invocations fail because the incoming records contain client-side mistakes. The team wants to measure how often these client-caused errors occur so that they can track trends and tune the application. Which solution will best provide a reliable count of these specific failures over time?

  • Enable enhanced monitoring such as Lambda Insights to capture all execution details and errors.

  • Instrument the function with AWS X-Ray and tag traces that include client errors.

  • Record a custom CloudWatch metric from the function code each time a client error is detected.

  • Add verbose logging to the function and periodically scan the logs for client errors.

AWS Certified Developer Associate DVA-C02
Troubleshooting and Optimization
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