DVA-C02 · Question #266
DVA-C02 Question #266: Real Exam Question with Answer & Explanation
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Question
A developer has created a data collection application that uses Amazon API Gateway, AWS Lambda, and Amazon S3. The application's users periodically upload data files and wait for the validation status to be reflected on a processing dashboard. The validation process is complex and time-consuming for large files. Some users are uploading dozens of large files and have to wait and refresh the processing dashboard to see if the files have been validated. The developer must refactor the application to immediately update the validation result on the user's dashboard without reloading the full dashboard. What is the MOST operationally efficient solution that meets these requirements?
Options
- AIntegrate the client with an API Gateway WebSocket API. Save the user-uploaded files with the
- BLaunch an Amazon EC2 micro instance, and set up a WebSocket server. Send the user-
- CSave the user's email address along with the user-uploaded file. When the validation process is
- DSave the user-uploaded file and user detail to Amazon DynamoDB. Use Amazon DynamoDB
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