AWS Certified Cloud Practitioner — Question 535

A cloud engineer wants to store data in Amazon S3. The engineer will access some of the data yearly and some of the data daily.

Which S3 storage class will meet those requirements MOST cost-effectively?

Answer options

• A. S3 Standard
• B. S3 Glacier Deep Archive
• C. S3 One Zone-Infrequent Access (S3 One Zone-IA)
• D. S3 Intelligent-Tiering

Correct answer: D

Explanation

S3 Intelligent-Tiering is the most cost-effective choice because it automatically moves data to the most cost-effective tier based on access frequency without performance impact or retrieval fees. S3 Standard would be too expensive for data accessed yearly, whereas S3 Glacier Deep Archive is unsuitable for daily access due to long retrieval times and high retrieval costs. S3 One Zone-IA does not automatically optimize for multiple access patterns and lacks the multi-AZ redundancy required for critical daily operational data.