Which AWS storage option is temporary (ephemeral) and is removed when its associated Amazon EC2 instance is stopped or terminated?
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Correct answer: Amazon EC2 instance store.
Why this is the answer
Amazon EC2 instance store provides temporary block-level storage for an EC2 instance. Data on an instance store volume persists only during the life of the associated instance; it is lost when the instance is stopped, terminated, or hibernated. This makes it suitable for temporary data, caches, or scratch space. Amazon EBS provides persistent block storage that can be detached and reattached to instances. Amazon EFS offers scalable, shared file storage for EC2 instances. Amazon S3 is object storage, designed for highly durable and scalable data storage, not directly attached to an EC2 instance as primary storage.
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