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AWS Certified Solutions Architect study material · question 282 of 500

What actually differs between the S3 storage classes?

  1. The maximum object size each class accepts
  2. The encryption algorithm applied at rest
  3. The balance of cost, retrieval performance and availability, since all are highly durable
  4. The durability, which falls as the class gets cheaper
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Answer: C. The balance of cost, retrieval performance and availability, since all are highly durable

Every S3 storage class offers high durability; the choice trades cost against retrieval speed and availability.

Source: Understanding and managing Amazon S3 storage classes (Amazon Web Services) — Understanding and managing Amazon S3 storage classes

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