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?
A.
Set up AWS Glue to copy the data from the on-premises servers to Amazon S3.
B.
Set up an AWS DataSync agent on the on-premises servers, and sync the data to Amazon S3.
C.
Set up an SFTP sync using AWS Transfer for SFTP to sync data from on-premises to Amazon S3.
D.
Set up an AWS Direct Connect connection between the on-premises data center and a VPC, and copy the data to Amazon S3.
Answer is B.
https://aws.amazon.com/blogs/storage/best-practices-for-setting-up-your-aws-datasync-agent/
https://aws.amazon.com/blogs/aws/new-aws-transfer-for-sftp-fully-managed-sftp-service-for-amazon-s3/
AWS DataSync fee for data copied $0.0125 per gigabyte (GB)
SFTP data uploads $0.04 per gigabyte (GB) transferred
SFTP data downloads $0.04 per gigabyte (GB) transferred
https://aws.amazon.com/datasync/pricing/
https://aws.amazon.com/aws-transfer-family/pricing/
Correct Ans: 'B'
"Set up an SFTP sync using AWS Transfer for SFTP to sync data from on premises to Amazon S3" is incorrect. This solution does not provide the scheduled synchronization features of AWS DataSync and is more expensive.
Answer is B.
Q: When do I use AWS DataSync and when do I use AWS Transfer Family?
A: If you currently use SFTP to exchange data with third parties, AWS Transfer Family provides a fully managed SFTP, FTPS, and FTP transfer directly into and out of Amazon S3, while reducing your operational burden.
If you want an accelerated and automated data transfer between NFS servers, SMB file shares, self-managed object storage, AWS Snowcone, Amazon S3, Amazon EFS, and Amazon FSx for Windows File Server, you can use AWS DataSync. DataSync is ideal for customers who need online migrations for active data sets, timely transfers for continuously generated data, or replication for business continuity
https://aws.amazon.com/datasync/faqs/
Answer is B is cheaper and the faqs says
https://aws.amazon.com/datasync/faqs/#:~:text=A%3A%20With%20AWS%20DataSync%2C%20you,for%20a%20standby%20file%20system.
With AWS DataSync, you can periodically replicate files into any Amazon S3 storage classes, or send the data to Amazon EFS or Amazon FSx for Windows File Server for a standby file system.
The question says cost
periodically back up small amounts of data to Amazon S3 - Answer is C SFTP
AWS Transfer for SFTP enables you to easily move your file transfer workloads that use the Secure Shell File Transfer Protocol (SFTP) to AWS without needing to modify your applications or manage any SFTP servers. ... With AWS SFTP, you pay only for the use of the SFTP server endpoint, and data uploaded and downloaded.
should be B
AWS DataSync fee for data copied $0.0125 per gigabyte (GB)
SFTP data uploads $0.04 per gigabyte (GB) transferred
SFTP data downloads $0.04 per gigabyte (GB) transferred
https://aws.amazon.com/datasync/pricing/
https://aws.amazon.com/aws-transfer-family/pricing/
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