You must securely move 5 TB of on-premises data to Amazon S3, with about 5% of the data changing daily. Updates must be propagated regularly; files are in multiple formats; the transfer must be automated and scheduled. Which AWS service provides the most operationally efficient solution?

AWS DataSync is the most operationally efficient solution because it is designed for automated, scheduled, and secure data transfers between on-premises storage and Amazon S3. It handles large datasets, including incremental changes, making it ideal for the 5% daily data change requirement. DataSync also supports various file formats and provides built-in encryption and integrity checks. AWS Glue is an ETL service, not a data transfer service for moving on-premises files. AWS Direct Connect provides a dedicated network connection but doesn't automate or manage the data transfer itself. Amazon S3 Transfer Acceleration speeds up transfers over the internet but doesn't offer the automation, scheduling, or incremental sync capabilities of DataSync for on-premises to S3 migrations.