A company has NFS servers in an on-premises data center that need to periodically back up small amounts of data to Amazon S3. Which solution meets these requirements and is MOST cost-effective?
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Correct answer: Set up an AWS DataSync agent on the on-premises servers, and sync the data to Amazon S3..
Why this is the answer
AWS DataSync is the most cost-effective and appropriate solution for periodically backing up NFS data from on-premises to Amazon S3. DataSync is designed for fast, simple, and secure data transfer over the internet or AWS Direct Connect, making it ideal for this use case. It automatically handles encryption, integrity checks, and network optimization. AWS Glue is a serverless data integration service primarily for ETL (Extract, Transform, Load) operations, not for direct file system synchronization. AWS Transfer for SFTP is for SFTP clients to access S3, not for syncing NFS shares. AWS Direct Connect provides a dedicated network connection but doesn't inherently handle the data transfer or synchronization logic; it would still require another service (like DataSync) to move the data, making it less cost-effective as a standalone solution for this specific requirement.
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