AWS Certified Solutions Architect – Associate (SAA-C02) — Question 143

A company has an on-premises data center that is running out of storage capacity. The company wants to migrate its storage infrastructure to AWS while minimizing bandwidth costs. The solution must allow for immediate retrieval of data at no additional cost.
How can these requirements be met?

Answer options

• A. Deploy Amazon S3 Glacier Vault and enable expedited retrieval. Enable provisioned retrieval capacity for the workload.
• B. Deploy AWS Storage Gateway using cached volumes. Use Storage Gateway to store data in Amazon S3 while retaining copies of frequently accessed data subsets locally.
• C. Deploy AWS Storage Gateway using stored volumes to store data locally. Use Storage Gateway to asynchronously back up point-in-time snapshots of the data to Amazon S3.
• D. Deploy AWS Direct Connect to connect with the on-premises data center. Configure AWS Storage Gateway to store data locally. Use Storage Gateway to asynchronously back up point-in-time snapshots of the data to Amazon S3.

Correct answer: B

Explanation

The correct answer, B, is suitable because it allows for immediate access to frequently used data locally while offloading less accessed data to Amazon S3, thus minimizing bandwidth costs. Option A is incorrect as S3 Glacier is meant for archival storage and not immediate retrieval. Options C and D focus on local storage but do not address the need for immediate retrieval at no added cost effectively.