A company wants to let a customer use on-premises Microsoft Active Directory to download files stored in Amazon S3. The customer's application uses an SFTP client to download the files. Which solution meets these requirements with the LEAST operational overhead and without changing the customer's application?
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Correct answer: Set up AWS Transfer Family with SFTP for Amazon S3. Configure integrated Active Directory authentication..
Why this is the answer
AWS Transfer Family for SFTP directly supports SFTP access to Amazon S3 and integrates with Active Directory for authentication, making it the ideal solution for the least operational overhead. It allows the customer to use their existing SFTP client without any application changes. AWS DMS is for database migration, not file transfer. AWS DataSync is for large-scale data transfers and synchronization, not for direct client access via SFTP, and IAM Identity Center (formerly AWS SSO) is an identity service, not a transfer service. Setting up a Windows EC2 instance with SFTP would involve significant operational overhead for server management, patching, and scaling, which is contrary to the "least operational overhead" requirement.
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