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DVA-C02 · Question #640
DVA-C02 Question #640: Real Exam Question with Answer & Explanation
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Submitted by hassan_iq· Mar 5, 2026Development with AWS Services
Question
A company has an application that uses an AWS Lambda function to process customer orders. The company notices that the application processes some orders more than once. A developer needs to update the application to prevent duplicate processing. Which solution will meet this requirement with the LEAST implementation effort?
Options
- AImplement a de-duplication mechanism that uses Amazon DynamoDB as the control database.
- BCreate a custom Amazon ECS task to perform idempotency checks. Use AWS Step Functions to
- CConfigure the Lambda function to retry failed invocations. Implement a retry mechanism that has
- DUse Amazon Athena to query processed events to identify duplicate records. Add processing
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