Question #970
A research institution needs to archive experimental data in Amazon S3. The data is accessed less than once a year and can be recreated from raw sources if lost. The institution prioritizes minimizing storage costs while meeting accessibility requirements.
S3 Standard
S3 Intelligent-Tiering
S3 Standard-Infrequent Access (S3 Standard-IA)
S3 One Zone-Infrequent Access (S3 One Zone-IA)
Explanation
The correct answer is D (S3 One Zone-IA) because:
1. Cost Efficiency: S3 One Zone-IA is cheaper than S3 Standard-IA (C) and S3 Intelligent-Tiering (B) due to storing data in only one Availability Zone (AZ).
2. Access Pattern: The data is accessed less than once a year, fitting the infrequent access tier.
3. Recreatable Data: Since the data can be recreated, the reduced redundancy of One Zone-IA is acceptable.
Other options are incorrect because:
- A (S3 Standard): Designed for frequent access, with higher storage costs.
- B (S3 Intelligent-Tiering): Adds monitoring fees and is unnecessary for predictable access patterns.
- C (S3 Standard-IA): Higher cost than One Zone-IA due to multi-AZ redundancy, which isn't required here.
Key Points: Prioritize cost over redundancy for rarely accessed, recreatable data. S3 One Zone-IA is optimal for this scenario.
Answer
The correct answer is: D