AWS Certified Cloud Practitioner (CLF-C02) — Question 578

A company needs to use Amazon S3 to store audio files that are each 5 megabytes in size. The company will rarely access the files, but the company must be able to retrieve the files immediately.

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

Answer options

Correct answer: B

Explanation

S3 Standard-Infrequent Access (S3 Standard-IA) is the ideal choice because it offers lower storage costs for infrequently accessed data while still providing immediate, millisecond-level retrieval. S3 Standard is less cost-effective for rare access, whereas S3 Glacier Flexible Retrieval and S3 Glacier Deep Archive are archive classes that require minutes to hours for data retrieval and cannot meet the immediate access requirement.