SAA-C03 Question 419
Single answerA company runs a web application that stores user-uploaded images in an Amazon S3 bucket. The application has two distinct access patterns: (1) frequent access for the first 30 days after an image is uploaded and (2) infrequent access after the initial 30 days. The company wants to optimize storage costs without impacting application performance. What is the BEST solution?
- A
Configure an S3 Lifecycle policy to transition objects to S3 Intelligent-Tiering after 30 days.
- B
Configure an S3 Lifecycle policy to transition objects to S3 Standard-IA after 30 days.
- C
Configure an S3 Lifecycle policy to transition objects to S3 Glacier Deep Archive after 30 days.
- D
Store all objects in S3 Standard and manually move them to the appropriate storage class after 30 days.
Show answer and explanation
Correct answer: B
Explanation
The S3 Standard-IA storage class is optimized for objects that are accessed less frequently but still require quick retrieval, and it provides cost savings compared to S3 Standard. By configuring an S3 Lifecycle policy, objects can be automatically transitioned to Standard-IA after 30 days, aligning with the application's predictable access pattern while minimizing costs.
- A. Incorrect.
S3 Intelligent-Tiering is designed for unpredictable access patterns and automatically moves objects between tiers. However, this scenario has a predictable pattern (frequent for 30 days, infrequent afterward), so Intelligent-Tiering is not cost-optimal.
- B. Correct.
S3 Standard-IA is ideal for objects that are accessed infrequently but require millisecond retrieval. This aligns with the scenario where objects are frequently accessed for the first 30 days and then infrequently accessed afterward. Using a Lifecycle policy to transition objects to Standard-IA is the most cost-effective and appropriate solution.
- C. Incorrect.
S3 Glacier Deep Archive is designed for archival data that is rarely accessed and can tolerate retrieval times of hours. It is not suitable for this scenario, where infrequent access still requires millisecond retrieval.
- D. Incorrect.
Manually moving objects between storage classes increases operational overhead and risks errors. Automated Lifecycle policies are the recommended approach for managing S3 data efficiently.