A company uses Amazon S3 to store log files. The logs are analyzed daily for the first 7 days, then rarely accessed. However, compliance requires the logs to be kept for 5 years. The company wants to minimize storage costs. <br/><br/>Which lifecycle policy is MOST cost-effective?

Answer options:

Transition to S3 Glacier Deep Archive after 7 days.

Transition to S3 Standard-IA after 30 days, then to S3 Glacier Deep Archive after 90 days.

Transition to S3 One Zone-IA after 7 days.

Keep in S3 Standard for 5 years.

How to approach this question

Remember the 30-day minimum storage duration for S3 Standard before transitioning to IA.

Full Answer

B.Transition to S3 Standard-IA after 30 days, then to S3 Glacier Deep Archive after 90 days.✓ Correct

S3 Glacier Deep Archive is the lowest-cost storage class and supports long-term retention and digital preservation for data that may be accessed once or twice in a year. Standard-IA requires a minimum 30-day storage duration.

Common mistakes

Trying to transition to IA or Glacier before 30 days, which incurs early deletion/transition fees.

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