AWS Certified Solutions Architect Associate SAA-C03 Practice Question
Which Amazon S3 storage class is specifically optimized for data that is very rarely accessed, must be retained for many years to satisfy regulatory compliance requirements, and offers the lowest storage cost?
Amazon S3 Glacier Deep Archive is purpose-built for long-term archival and digital preservation. AWS positions it for customers in highly regulated industries that must keep data 7-10 years or longer for compliance. It provides the lowest cost of all S3 classes, with retrieval in hours, making it ideal when immediate access is not required.
Amazon S3 Glacier Flexible Retrieval (formerly S3 Glacier) is also archival but costs more and targets use cases that may need retrieval in minutes.
S3 Intelligent-Tiering automatically moves data among tiers but is not optimized for multi-year compliance archives.
S3 One Zone-IA stores data in a single AZ and is unsuitable for long-term compliance retention because of its lower resilience.
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