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AWS Certified Data Engineer Associate DEA-C01 Practice Question

A data engineer manages a Lambda function that pulls data from a partner's SFTP server and writes the files to Amazon S3. The function must run automatically at 02:30 UTC every day, must not rely on any always-running servers, and the schedule must be changeable through infrastructure-as-code templates. Which solution meets these requirements most cost-effectively?

  • Create an Amazon EventBridge rule with the cron expression "30 2 * * ? *" that targets the Lambda function.

  • Design an AWS Step Functions state machine that waits 24 hours in a loop before invoking the Lambda function.

  • Launch an always-on EC2 instance running a cron job that calls the Lambda invoke API at 02:30 UTC.

  • Configure an AWS Batch scheduled job that runs at 02:30 UTC and executes a container which calls the Lambda function.

AWS Certified Data Engineer Associate DEA-C01
Data Ingestion and Transformation
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