AWS Certified Solutions Architect – Associate (SAA-C03) — Question 1011

A company is planning to migrate a legacy application to AWS. The application currently uses NFS to communicate to an on-premises storage solution to store application data. The application cannot be modified to use any other communication protocols other than NFS for this purpose.

Which storage solution should a solutions architect recommend for use after the migration?

Answer options

• A. AWS DataSync
• B. Amazon Elastic Block Store (Amazon EBS)
• C. Amazon Elastic File System (Amazon EFS)
• D. Amazon EMR File System (Amazon EMRFS)

Correct answer: C

Explanation

Amazon Elastic File System (Amazon EFS) natively supports the NFS protocol, allowing the legacy application to connect without any code modifications. Amazon EBS is a block storage service and does not support NFS directly, while AWS DataSync is designed for data migration rather than active application storage. Amazon EMRFS is specifically optimized for MapReduce jobs on Amazon EMR and does not serve as a general-purpose NFS file share.