AWS Certified Solutions Architect Associate SAA-C03 Practice Question
A company must retain decades-old project archives that are almost never accessed and would be retrieved only if required for a legal investigation. Retrieval latencies of up to 12 hours are acceptable. Which Amazon S3 storage class provides the lowest monthly storage cost for this requirement?
Amazon S3 Glacier Deep Archive is specifically designed for data that is accessed less than once a year and can tolerate asynchronous restores of 12-48 hours. It offers the lowest price per GB of all S3 storage classes, making it the most cost-effective choice for legal-hold archives.
Amazon S3 Glacier Flexible Retrieval (formerly S3 Glacier) is a low-cost archive class but is roughly 3-4 times more expensive per GB than Deep Archive and is intended for data that might need faster restores (minutes to hours).
Amazon S3 Intelligent-Tiering adds a per-object monitoring charge and is optimized for unpredictable access patterns rather than long-term archives.
Amazon S3 One Zone-Infrequent Access is several times more expensive than both Glacier classes and stores data in a single Availability Zone, so it is not the most economical or durable option for this scenario.
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