AWS Certified Cloud Practitioner — Question 766

Which Amazon S3 storage class is the MOST cost-effective for long-term storage?

Answer options

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

Correct answer: A

Explanation

S3 Glacier Deep Archive is the lowest-cost storage class in Amazon S3, designed specifically for long-term retention of data that is accessed only once or twice a year. While S3 Standard, S3 Standard-IA, and S3 One Zone-IA offer faster retrieval times, they have significantly higher storage costs per gigabyte, making them less economical for archival purposes.