AWS Certified Solutions Architect Associate SAA-C03 Practice Question
Your client hosts their multimedia files on Amazon S3 and observes that these files are frequently accessed for up to 60 days after uploading. After 60 days, the access patterns decline sharply, but the client requires the files to be available for occasional access for at least one year. Which lifecycle policy should be applied to meet the client's need for cost optimization while maintaining file availability?
Keep the objects stored in S3 Standard without transitioning them to other storage classes
Transition objects to S3 Standard-Infrequent Access after 60 days and to S3 Glacier Flexible Retrieval after one year
Transition objects directly to S3 Glacier Flexible Retrieval after 60 days
Transition objects to S3 One Zone-Infrequent Access after 60 days
Configure an S3 Lifecycle rule that transitions the objects to S3 Standard-Infrequent Access (Standard-IA) 60 days after upload. Standard-IA offers the same millisecond latency and 11-nines durability as S3 Standard at a lower storage cost, with a 30-day minimum-storage duration that the workload already satisfies. Add a second transition to move the objects to S3 Glacier Flexible Retrieval (formerly "S3 Glacier") after they are 365 days old. Glacier Flexible Retrieval provides the lowest-cost archive tier that still allows retrieval in minutes to hours-adequate for the client's occasional access needs. S3 One Zone-IA is not chosen because, although it has the same durability as Standard-IA, it stores data in a single Availability Zone and offers lower availability (99.5%), making it less suitable for a primary copy that must remain available. Leaving the data in S3 Standard or moving it directly to Glacier after 60 days would either cost more or slow access during the high-access period.
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What is the difference between S3 Standard, S3 Standard-IA, and S3 Glacier Flexible Retrieval?
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Why is S3 One Zone-IA not recommended for this use case?
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What happens if objects are moved directly to S3 Glacier Flexible Retrieval after 60 days?