A company needs fully managed, highly reliable, and scalable file storage that is accessible over the Server Message Block (SMB) protocol.
Which AWS service will meet these requirements?
Amazon S3
Amazon Elastic File System (Amazon EFS)
Amazon FSx for Windows File Server
Amazon Elastic Block Store (Amazon EBS)
Explanations:
Amazon S3 is an object storage service, not a file storage service, and does not support SMB protocol.
Amazon EFS is a managed file storage service but primarily supports NFS protocol, not SMB.
Amazon FSx for Windows File Server provides fully managed, highly reliable, scalable file storage accessible over the SMB protocol.
Amazon EBS is a block storage service used for EC2 instances and does not provide file storage over SMB.
I outline that the answer is:
Amazon FSx for Windows File Server