DEA-C01 Question 232
Select 3Your company stores large volumes of customer transaction data in Amazon S3. This data is accessed frequently for the first 30 days, moderately for the next 60 days, and rarely after 90 days. Management has requested you to optimize the storage costs while ensuring data accessibility throughout its lifecycle. Which of the following approaches should you implement?
- A
Use S3 Standard storage class for the first 30 days, S3 Standard-IA for the next 60 days, and S3 Glacier Flexible Retrieval for data older than 90 days.
- B
Keep all data in the S3 Standard storage class to ensure faster access and simplify the management of the data lifecycle.
- C
Use S3 Intelligent-Tiering to automatically transition the data between access tiers based on usage patterns.
- D
Implement an S3 Lifecycle policy to transition objects to S3 Standard-IA after 30 days, and to S3 Glacier Deep Archive after 90 days.
- E
Use S3 One Zone-IA for all data to reduce costs and simplify operations.
Show answer and explanation
Correct answers: A, C, D
Explanation
To optimize storage costs based on the data lifecycle, it's crucial to leverage the appropriate S3 storage classes and tools. Using S3 Standard, S3 Standard-IA, and S3 Glacier Flexible Retrieval (or Deep Archive) based on access patterns is a cost-effective strategy. Additionally, S3 Intelligent-Tiering automates transitions between storage classes, and S3 Lifecycle policies allow you to define rules for transitioning data at specific intervals. Both approaches help reduce costs while ensuring data is accessible as required.
- A. Correct.
This is a cost-effective approach that leverages different S3 storage classes (Standard, Standard-IA, and Glacier Flexible Retrieval) based on the data's access patterns. It optimizes costs while ensuring appropriate accessibility.
- B. Incorrect.
Keeping all data in the S3 Standard storage class is not cost-effective for infrequently accessed data. While it provides high availability and durability, the costs will be unnecessarily high for data that is accessed rarely.
- C. Correct.
S3 Intelligent-Tiering is an excellent solution for optimizing storage costs automatically based on changing access patterns. It transitions data between tiers without requiring manual intervention.
- D. Correct.
Implementing an S3 Lifecycle policy is a recommended approach for controlling storage costs. By transitioning data to more cost-effective storage classes like Standard-IA and Glacier Deep Archive, you can save costs while maintaining accessibility for infrequent use cases.
- E. Incorrect.
S3 One Zone-IA is not recommended for critical data because it stores data in a single availability zone, which increases the risk of data loss. It also does not match the lifecycle requirements outlined in the scenario.