Which AWS service is designed to lift and migrate on-premises servers to AWS with minimal downtime?

• A. AWS Application Migration Service (MGN).
• B. AWS Database Migration Service (DMS).
• C. AWS DataSync.
• D. AWS Snowball.

Answer: (A)

Lifting and shifting on-premises servers to AWS with minimal downtime relies on continuously replicating the servers to the cloud and then performing a quick, controlled cutover. AWS Application Migration Service automates this entire flow by creating replica instances in AWS, keeping them in sync with the on-premises originals, and providing automated testing and cutover steps so you can switch production over with only brief downtime. It supports both Windows and Linux servers and converts the replicas into AWS-ready instances, making the migration smooth and predictable.

The other options serve different needs: database migration is handled by a service designed specifically for moving database data rather than whole servers; a data transfer service focuses on moving files and datasets rather than maintaining live synchronization for an entire server; and a physical transfer device is intended for bulk data movement rather than continuous replication and quick cutovers.