Answer: AWS Application Migration Service

## Explanation **AWS Application Migration Service (MGN)** is the correct service for lift-and-shift migrations without long cutover windows because: - **Automated Migration**: Automates the process of migrating physical, virtual, or cloud servers to AWS - **Minimal Downtime**: Enables fast cutover windows by using block-level replication - **Lift-and-Shift Approach**: Supports rehosting applications without requiring changes to the application code - **Multiple Application Support**: Can migrate many applications simultaneously **Why other options are incorrect:** - **AWS Application Discovery Service**: Helps discover on-premises applications and their dependencies for planning migrations, but doesn't perform the actual migration - **AWS Migration Hub**: Provides a central location to track migration progress across multiple AWS and partner solutions, but doesn't perform the migration itself - **AWS DataSync**: Designed for data transfer and synchronization, not for migrating entire applications with their operating systems Application Migration Service is specifically designed for the scenario described - migrating many applications with minimal downtime using a lift-and-shift approach.

Author: Ritesh Yadav