AWS Certified Solutions Architect – Associate (SAA-C03) — Question 343

A company stores its data objects in Amazon S3 Standard storage. A solutions architect has found that 75% of the data is rarely accessed after 30 days. The company needs all the data to remain immediately accessible with the same high availability and resiliency, but the company wants to minimize storage costs.

Which storage solution will meet these requirements?

Answer options

• A. Move the data objects to S3 Glacier Deep Archive after 30 days.
• B. Move the data objects to S3 Standard-Infrequent Access (S3 Standard-IA) after 30 days.
• C. Move the data objects to S3 One Zone-Infrequent Access (S3 One Zone-IA) after 30 days.
• D. Move the data objects to S3 One Zone-Infrequent Access (S3 One Zone-IA) immediately.

Correct answer: B

Explanation

S3 Standard-IA is the ideal choice because it offers the same high availability and multi-AZ resiliency as S3 Standard, with immediate data access at a lower storage cost. S3 Glacier Deep Archive is incorrect because it is an archival storage class that does not support immediate retrieval. S3 One Zone-IA is incorrect because it stores data in only one Availability Zone, failing to meet the requirement for the same level of resiliency.