Question #1172
A cloud engineer needs to store data in Amazon S3, where some data is accessed weekly and some monthly. Which S3 storage class will MOST cost-effectively meet these requirements?
S3 Standard
S3 Glacier Deep Archive
S3 One Zone-Infrequent Access (S3 One Zone-IA)
S3 Intelligent-Tiering
Explanation
The correct answer is D. S3 Intelligent-Tiering is designed to automatically move objects between two access tiers (Frequent and Infrequent Access) based on changing access patterns. For data accessed weekly, it remains in the Frequent Access tier, while data not accessed for 30 consecutive days transitions to the Infrequent Access tier, reducing costs. This eliminates manual management of storage classes and ensures cost efficiency for mixed access patterns.
Why other options are incorrect:
- A. S3 Standard is optimized for frequent access but is more expensive for infrequent (monthly) data.
- B. S3 Glacier Deep Archive is suited for archival data accessed once a year or less, with long retrieval times unsuitable for weekly/monthly access.
- C. S3 One Zone-IA is cost-effective for infrequent access but lacks automatic tiering, requiring manual management for weekly/monthly patterns.
Key Points:
- Use S3 Intelligent-Tiering for unpredictable or mixed access patterns.
- It avoids retrieval costs/limitations of Glacier and manual effort of managing multiple storage classes.
Answer
The correct answer is: D