AWS SAA C003 S3 Type

A solutions architect is using Amazon S3 to design the storage architecture of a new digital media application. The media files must be resilient to the loss of an Availability Zone. Some files are accessed frequently while other files are rarely accessed in an unpredictable pattern. The solutions architect must minimize the costs of storing and retrieving the media files.
Which storage option meets these requirements?

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

---

The correct answer is B. S3 Intelligent-Tiering.

Amazon S3 Intelligent-Tiering is designed to optimize costs by automatically moving data to the most cost-effective access tier, without performance impact or operational overhead. It works by storing objects in two access tiers: one tier that is optimized for frequent access and another lower-cost tier that is optimized for infrequent access. This makes it a suitable choice for the described use case where some files are accessed frequently while others are accessed infrequently in an unpredictable pattern.

Please note that while S3 Standard provides high durability, it may not be cost-effective for infrequently accessed files. S3 Standard-IA is for data that is accessed less frequently, but requires rapid access when needed. S3 One Zone-IA stores data in a single AZ and is thus not resilient to the loss of an AZ.