SAA-C03 Question 417
Single answerA company is building a data lake on AWS to store large amounts of structured and unstructured data. The data is accessed daily for the first 30 days and then infrequently thereafter. The company wants to minimize storage costs while ensuring that the data is still accessible with low latency when needed. Which storage solution and access pattern combination should the company use?
- A
Store the data in Amazon S3 Standard and transition it to S3 Glacier after 30 days
- B
Store the data in Amazon S3 Intelligent-Tiering and allow automatic tier transitions based on access patterns
- C
Store the data in Amazon S3 Standard-IA and transition it to S3 Glacier Deep Archive after 30 days
- D
Store the data in Amazon S3 One Zone-IA to minimize costs and manually manage data transitions
Show answer and explanation
Correct answer: B
Explanation
The best solution for the given scenario is Amazon S3 Intelligent-Tiering. It optimizes storage costs by automatically tiering data based on changing access patterns and ensures low latency access. This eliminates the need for manual transitions and ensures the data is stored cost-effectively while being readily accessible, meeting the company's requirements for both cost efficiency and low latency access.
- A. Incorrect.
While Amazon S3 Standard offers high durability and availability, transitioning to S3 Glacier after 30 days might result in higher retrieval costs and latency if the data is accessed again. This doesn't align with the requirement for low latency access even after 30 days.
- B. Correct.
Amazon S3 Intelligent-Tiering automatically moves data between storage tiers based on changing access patterns. It provides low latency and cost optimization without requiring manual intervention, meeting the company's requirements.
- C. Incorrect.
Amazon S3 Standard-IA is designed for infrequent access, but transitioning to S3 Glacier Deep Archive results in a significant delay when retrieving data. This does not satisfy the need for low latency access.
- D. Incorrect.
Amazon S3 One Zone-IA is a low-cost option, but it sacrifices data resiliency because it stores data in a single availability zone. Additionally, manually managing data transitions increases operational overhead and doesn't offer the flexibility of automatic tiering.