AWS Certified Developer – Associate (DVA-C02) — Question 199

An IT department uses Amazon S3 to store sensitive images. After more than 1 year, the company moves the images into archival storage. The company rarely accesses the images, but the company wants a storage solution that maximizes resiliency. The IT department needs access to the images that have been moved to archival storage within 24 hours.

Which solution will meet these requirements MOST cost-effectively?

Answer options

• A. Use S3 Standard-Infrequent Access (S3 Standard-IA) to store the images. Use S3 Glacier Deep Archive with standard retrieval to store and retrieve archived images.
• B. Use S3 Standard-Infrequent Access (S3 Standard-IA) to store the images. Use S3 Glacier Deep Archive with bulk retrieval to store and retrieve archived images.
• C. Use S3 Intelligent-Tiering to store the images. Use S3 Glacier Deep Archive with standard retrieval to store and retrieve archived images.
• D. Use S3 One Zone-Infrequent Access (S3 One Zone-IA) to store the images. Use S3 Glacier Deep Archive with bulk retrieval to store and retrieve archived images.

Correct answer: A

Explanation

Option A is the most cost-effective solution as it allows for infrequent access to images via S3 Standard-IA and provides standard retrieval from S3 Glacier Deep Archive, ensuring access within 24 hours. Options B and D utilize bulk retrieval, which may take longer than 24 hours, and C uses Intelligent-Tiering, which may not be as cost-effective for rarely accessed data compared to using Glacier Deep Archive.