AWS Certified Solutions Architect Associate SAA-C03 Practice Question
An organization stores log files in an Amazon S3 bucket. To reduce storage costs, the team wants any object that is more than 30 days old to be automatically moved to a lower-cost storage class, with no manual intervention required. Which Amazon S3 feature should they use to meet this requirement?
They should configure S3 Lifecycle Rules. A Lifecycle rule lets you specify a transition action that moves objects to another storage class after a set number of days since creation (for example, 30 days). This automates cost optimization without manual effort.
Enabling S3 Versioning keeps multiple object versions but does not move them to cheaper classes.
Cross-Region Replication copies objects to another Region and is not intended for cost-tiering within the same bucket.
S3 Object Lock is used for write-once-read-many (WORM) protection and does not handle storage-class transitions.
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