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AWS Certified Solutions Architect study material · question 283 of 500

Which two statements about S3 One Zone-IA are correct? Choose two.

  1. It offers no millisecond retrieval
  2. It stores data in a single Availability Zone
  3. It is as durable as Standard-IA but less available and less resilient
  4. It replicates data across three Availability Zones
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Answer: B. It stores data in a single Availability Zone
C. It is as durable as Standard-IA but less available and less resilient

One Zone-IA keeps one copy in one zone, which lowers cost and resilience but not durability, and still returns objects in milliseconds.

Source: Understanding and managing Amazon S3 storage classes (Amazon Web Services) — Storage classes for infrequently accessed objects

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