AWS Certified Solutions Architect – Associate (SAA-C03) — Question 1001

A company has several on-premises Internet Small Computer Systems Interface (ISCSI) network storage servers. The company wants to reduce the number of these servers by moving to the AWS Cloud. A solutions architect must provide low-latency access to frequently used data and reduce the dependency on on-premises servers with a minimal number of infrastructure changes.

Which solution will meet these requirements?

Answer options

• A. Deploy an Amazon S3 File Gateway.
• B. Deploy Amazon Elastic Block Store (Amazon EBS) storage with backups to Amazon S3.
• C. Deploy an AWS Storage Gateway volume gateway that is configured with stored volumes.
• D. Deploy an AWS Storage Gateway volume gateway that is configured with cached volumes.

Correct answer: D

Explanation

An AWS Storage Gateway volume gateway configured with cached volumes minimizes the on-premises storage footprint by storing the primary dataset in Amazon S3 while keeping a cache of recently accessed data locally for low-latency iSCSI access. Stored volumes keep the entire dataset on-premises, which does not reduce local storage reliance as effectively. Amazon S3 File Gateway is designed for file-based access rather than block storage, and Amazon EBS cannot directly replace local iSCSI servers without a gateway interface.