AWS Certified Solutions Architect – Associate (SAA-C03) — Question 594

A company stores its data on premises. The amount of data is growing beyond the company's available capacity.

The company wants to migrate its data from the on-premises location to an Amazon S3 bucket. The company needs a solution that will automatically validate the integrity of the data after the transfer.

Which solution will meet these requirements?

Answer options

• A. Order an AWS Snowball Edge device. Configure the Snowball Edge device to perform the online data transfer to an S3 bucket
• B. Deploy an AWS DataSync agent on premises. Configure the DataSync agent to perform the online data transfer to an S3 bucket.
• C. Create an Amazon S3 File Gateway on premises Configure the S3 File Gateway to perform the online data transfer to an S3 bucket
• D. Configure an accelerator in Amazon S3 Transfer Acceleration on premises. Configure the accelerator to perform the online data transfer to an S3 bucket.

Correct answer: B

Explanation

AWS DataSync is an online data transfer service that automatically calculates and compares checksums of the source and destination files to ensure data integrity during and after transfer. AWS Snowball Edge is primarily designed for offline data transfer. Neither Amazon S3 File Gateway nor Amazon S3 Transfer Acceleration provides built-in, automated post-transfer data integrity validation as a core feature for bulk migration.