AWS Certified Solutions Architect – Associate (SAA-C02) — Question 391

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 access cloud storage without any code modifications. Amazon EBS is a block storage service and does not provide NFS file shares, while Amazon EMRFS is a connector for MapReduce processing on Amazon EMR. AWS DataSync is used for transferring data rather than serving as a primary storage target.