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Which AWS feature automatically transitions S3 objects between storage classes (Standard → IA → Glacier → Deep Archive) or deletes them after N days?
AAWS Trusted Advisor
BAmazon CloudFront
CS3 Versioning
DS3 Lifecycle policies
Answer & Solution
Correct answer: D. S3 Lifecycle policies
Lifecycle rules age objects through cheaper classes or delete them. Versioning preserves history (separate feature). CloudFront is a CDN. Trusted Advisor advises but doesn't transition.
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