DEA-C01 Question 217
Select 2Your company uses Amazon S3 to store large amounts of data for analytics and compliance. Recently, the analytics team noticed increasing storage costs and requested a strategy to optimize costs while retaining data for compliance. The company mandates that data older than 30 days must be archived but still accessible within minutes if needed. Additionally, data older than 365 days should be retained for compliance purposes but can have retrieval times of several hours. Which lifecycle policy configuration would best address this requirement?
- A
Transition data older than 30 days to S3 Standard-Infrequent Access (S3 Standard-IA) and data older than 365 days to S3 Glacier Deep Archive.
- B
Transition data older than 30 days to S3 Intelligent-Tiering and data older than 365 days to S3 Glacier Deep Archive.
- C
Transition data older than 30 days to S3 Standard-Infrequent Access (S3 Standard-IA) and create a lifecycle expiration rule to delete data older than 365 days.
- D
Transition data older than 30 days to S3 One Zone-Infrequent Access (S3 One Zone-IA) and data older than 365 days to S3 Glacier.
- E
Transition data older than 30 days to S3 Standard-Infrequent Access (S3 Standard-IA) and data older than 365 days to S3 Glacier.
Show answer and explanation
Correct answers: A, E
Explanation
Managing the lifecycle of data in Amazon S3 requires selecting the right storage classes to balance cost, performance, and compliance requirements. S3 Standard-IA is optimal for data that needs to be accessed occasionally but requires quick retrieval, while S3 Glacier Deep Archive or S3 Glacier is better suited for long-term archiving due to their lower costs and slower retrieval times. Combining these storage classes in a lifecycle policy ensures cost optimization and compliance with data retention requirements.
- A. Correct.
Correct: S3 Standard-IA is a good choice for data accessed less frequently but still requires millisecond latency, and S3 Glacier Deep Archive is the most cost-effective solution for long-term archiving with slower retrieval times.
- B. Incorrect.
Correct: S3 Intelligent-Tiering automatically moves objects between access tiers based on usage patterns, and S3 Glacier Deep Archive is suitable for long-term storage with slower retrieval times.
- C. Incorrect.
Incorrect: While transitioning data to S3 Standard-IA is valid, deleting data older than 365 days violates the compliance requirement to retain the data.
- D. Incorrect.
Incorrect: S3 One Zone-IA is not ideal for critical data, as it stores data in a single Availability Zone, which increases the risk of data loss. S3 Glacier is valid for archiving but not as cost-effective as S3 Glacier Deep Archive for long-term storage.
- E. Correct.
Correct: S3 Standard-IA is appropriate for infrequent access with quick retrieval, and S3 Glacier is a good option for archiving with slower retrieval times. However, S3 Glacier Deep Archive would be more cost-effective.