Explanation:
AWS DataSync is purpose-built for efficient, scheduled cross-Region file transfers between EFS file systems with built-in integrity verification and minimal manual effort. Consolidating all files into the data science team's Regional EFS ensures data residency compliance. Lambda then mounts one local EFS and processes data entirely within the required Region, with Step Functions orchestrating the workflow serverlessly.
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Question 15. A company has AWS resources in multiple AWS Regions. The company has an Amazon EFS file system in each Region where the company operates. The company's data science team operates within only a single Region. The data that the data science team works with must remain within the team's Region. A data engineer needs to create a single dataset by processing files that are in each of the company's Regional EFS file systems. The data engineer wants to use an AWS Step Functions state machine to orchestrate AWS Lambda functions to process the data. Which solution will meet these requirements with the LEAST effort?
A
Peer the VPCs that host the EFS file systems in each Region with the VPC that is in the data science team's Region. Enable EFS file locking. Configure the Lambda functions in the data science team's Region to mount each of the Region-specific file systems. Use the Lambda functions to process the data.
B
Configure each of the Regional EFS file systems to replicate data to the data science team's Region. In the data science team's Region, configure the Lambda functions to mount the replica file systems. Use the Lambda functions to process the data.
C
Deploy the Lambda functions to each Region. Mount the Regional EFS file systems to the Lambda functions. Use the Lambda functions to process the data. Store the output in an Amazon S3 bucket in the data science team's Region.
D
Use AWS DataSync to transfer files from each of the Regional EFS file systems to the file system that is in the data science team's Region. Configure the Lambda functions in the data science team's Region to mount the file system that is in the same Region. Use the Lambda functions to process the data.
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