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Difficulty: MediumAmazon S3 Storage Class and Lifecycle Optimization

A company uploads system telemetry archives to an Amazon S3 Standard bucket. The logs must be accessed frequently with millisecond latency for the first 3030 days. After 3030 days, the logs are accessed occasionally but still require millisecond access. After 9090 days from upload, the logs are rarely accessed, but if a retrieval request is made, the logs must be available within 33 to 55 hours. The logs must be kept for a total of 360360 days before deletion.

Which two lifecycle transitions should a SysOps administrator configure to meet these requirements in the most cost-effective manner? (Select TWO.)

  1. Transition objects from S3 Standard to S3 Standard-Infrequent Access (S3 Standard-IA) after 3030 days.Answer
  2. Transition objects from S3 Standard-IA to S3 Glacier Flexible Retrieval after 9090 days.Answer
  3. C
    Transition objects from S3 Standard to S3 Standard-Infrequent Access (S3 Standard-IA) after 1515 days.
  4. D
    Transition objects from S3 Standard-IA to S3 Glacier Deep Archive after 9090 days.
  5. E
    Transition objects from S3 Glacier Flexible Retrieval to S3 Standard-IA after 360360 days.

Answer

Transitioning objects from S3 Standard to S3 Standard-Infrequent Access (S3 Standard-IA) after 3030 days, and transitioning objects from S3 Standard-IA to S3 Glacier Flexible Retrieval after 9090 days.
The correct configuration transitions objects from S3 Standard to S3 Standard-Infrequent Access (S3 Standard-IA) after 3030 days, and then to S3 Glacier Flexible Retrieval after 9090 days. S3 Standard-IA provides millisecond latency for the occasional access required between days 3030 and 9090, satisfying the 3030-day minimum limit. S3 Glacier Flexible Retrieval provides standard retrievals in 33 to 55 hours, meeting the recovery time requirement at a highly optimized cost.

Step-by-Step Solution

1
Analyze the access frequency, latency, and retrieval time requirements for each phase of the lifecycle.
Identified that the 3030-to-9090-day phase requires millisecond access and occasional use, while the post-9090-day phase requires retrieval within 33 to 55 hours.
This establishes the target S3 storage classes (S3 Standard-IA and S3 Glacier Flexible Retrieval).
2
Verify S3 Standard-IA transition constraints.
Transitioning to S3 Standard-IA after 3030 days is valid because S3 Lifecycle rules require objects to reside in S3 Standard for at least 3030 days before transitioning.
Ensures compliance with S3 minimum storage duration limits.
3
Verify S3 Glacier Flexible Retrieval transition constraints from S3 Standard-IA.
Transitioning to S3 Glacier Flexible Retrieval at day 9090 (after 6060 days in S3 Standard-IA) is valid because the objects have met the 3030-day minimum storage duration of S3 Standard-IA.
Confirms the transition sequence is valid and satisfies the 33 to 55 hours retrieval requirement.

Key Concept

Amazon S3 Lifecycle transition rules and minimum storage duration constraints for cost optimization.
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Topics

Amazon S3 Storage Class and Lifecycle Optimization

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