SAP-C03 practice question: Hybrid data sync and legacy integration (DataSync, Storage Gateway, Amazon MQ)
Architecture Design and Implementation Built for the Cloud A free question from our original SAP-C03 practice exam. Try it, then open the answer to see why each option is right or wrong.
A hospital group stores about 300 TB of medical imaging on NFS file servers in its data center. It wants the archive in Amazon S3 within about three weeks, using the existing 10 Gbps Direct Connect link, with checksum verification of every file.
After the first copy, the archive must stay in sync with the on-premises files each night for six months, while the radiology applications keep reading the files over NFS until cutover. The IT team wants a managed service with little custom code.
Which solution meets these requirements?
Choose one answer.
AA. Use AWS Database Migration Service with a full load and ongoing replication task, pointing the NFS file servers at the S3 bucket as the target.
BB. Create an AWS Transfer Family SFTP server backed by the S3 bucket, switch the radiology applications from NFS to SFTP, and run scripted SFTP copy jobs for the first copy and the nightly sync.
CC. Configure an AWS Storage Gateway volume gateway on premises, with the NFS shares presented as iSCSI volumes that are backed up to S3 as snapshots.
DD. Deploy an AWS DataSync agent in the data center, and create a DataSync task from the NFS shares to the S3 bucket with data verification turned on and a nightly schedule.
Show the answer and explanation
Answer: D
A. Wrong: AWS Database Migration Service moves data between databases, not file shares. It does not sync an NFS file tree or verify files the way the hospital group needs.
B. Wrong: Transfer Family gives managed SFTP access to S3, but the radiology applications would have to change from NFS before cutover, which the stem rules out. The scripted copy and sync jobs are also the custom code the IT team wants to avoid.
C. Wrong: A volume gateway presents block storage over iSCSI, so the NFS file servers and their directory tree do not map onto it. The archive would not appear in S3 as the files the radiology tools read.
D. Right: Correct. DataSync is a managed file transfer service with an on-premises agent, scheduled incremental transfers, and data verification, so it fits the three-week copy and the nightly sync with little custom code.
Explanation
DataSync copies NFS file trees to S3 with verification and scheduled incremental runs. DMS targets databases, Transfer Family changes the access method for the radiology tools, and a volume gateway presents block storage rather than the file tree.
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