AWS Certified Solutions Architect – Associate (SAA-C03) — Question 766

A social media company has workloads that collect and process data. The workloads store the data in on-premises NFS storage. The data store cannot scale fast enough to meet the company’s expanding business needs. The company wants to migrate the current data store to AWS.

Which solution will meet these requirements MOST cost-effectively?

Answer options

• A. Set up an AWS Storage Gateway Volume Gateway. Use an Amazon S3 Lifecycle policy to transition the data to the appropriate storage class.
• B. Set up an AWS Storage Gateway Amazon S3 File Gateway. Use an Amazon S3 Lifecycle policy to transition the data to the appropriate storage class.
• C. Use the Amazon Elastic File System (Amazon EFS) Standard-Infrequent Access (Standard-IA) storage class. Activate the infrequent access lifecycle policy.
• D. Use the Amazon Elastic File System (Amazon EFS) One Zone-Infrequent Access (One Zone-IA) storage class. Activate the infrequent access lifecycle policy.

Correct answer: B

Explanation

An AWS Storage Gateway Amazon S3 File Gateway supports the NFS protocol, allowing the on-premises workloads to seamlessly connect to Amazon S3, which is much more cost-effective than Amazon EFS. Using S3 Lifecycle policies further optimizes costs by automatically moving older data to cheaper storage tiers. Volume Gateway is incorrect because it provides block storage (iSCSI) rather than the required NFS file interface.