AWS Certified Solutions Architect Associate SAA-C03 Practice Question
A data-science team stores hundreds of terabytes of experiment logs and model artifacts in an Amazon S3 bucket. Object access is unpredictable: new files are read often for a few weeks and then only rarely. The team wants to minimize storage costs without creating or managing any custom scripts or lifecycle rules to move objects between storage classes. Which Amazon S3 storage class or feature best meets these requirements?
Amazon S3 Intelligent-Tiering storage class
Use S3 Replication to copy objects to another bucket stored in S3 Standard-IA
Store the objects directly in S3 Standard-Infrequent Access
Configure an S3 Lifecycle rule to transition objects to S3 Glacier Instant Retrieval after 30 days
The S3 Intelligent-Tiering storage class monitors object access patterns and automatically moves objects between frequent, infrequent, and optional archive access tiers. This eliminates the need to write or maintain lifecycle rules while continuously optimizing storage costs. Other options either require the team to set up and manage lifecycle policies (S3 Lifecycle), provide only a single fixed storage-class price point without automatic movement (Standard-IA), or involve manual replication and management of a second bucket (S3 Replication).
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