AWS Certified Solutions Architect - Associate
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A company is storing petabytes of data in Amazon S3 Standard. The data is stored in multiple S3 buckets and is accessed with varying frequency. The company does not know access patterns for all the data. The company needs to implement a solution for each S3 bucket to optimize the cost of S3 usage.
Which solution will meet these requirements with the MOST operational efficiency?
Other
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UAnonymous
A
Create an S3 Lifecycle configuration with a rule to transition the objects in the S3 bucket to S3 Intelligent-Tiering.
B
Use the S3 storage class analysis tool to determine the correct tier for each object in the S3 bucket. Move each object to the identified storage tier.
C
Create an S3 Lifecycle configuration with a rule to transition the objects in the S3 bucket to S3 Glacier Instant Retrieval.
D
Create an S3 Lifecycle configuration with a rule to transition the objects in the S3 bucket to S3 One Zone-Infrequent Access (S3 One Zone-IA).
Explanation:
Explanation
Correct Answer: A
Why Option A is correct:
- S3 Intelligent-Tiering is specifically designed for data with unknown or changing access patterns.
- It automatically moves objects between four access tiers (Frequent, Infrequent, Archive Instant Access, and Deep Archive) based on changing access patterns.
- It requires no manual intervention or monitoring of access patterns.
- It provides the MOST operational efficiency because it's fully automated - once configured via lifecycle rules, it works automatically without ongoing management.
- It optimizes costs by automatically moving objects to the most cost-effective storage tier based on actual usage.
Why other options are incorrect:
Option B: While S3 storage class analysis can help identify access patterns, it requires manual analysis and manual movement of objects. This approach is NOT operationally efficient for petabytes of data across multiple buckets, especially when access patterns are unknown.
Option C: S3 Glacier Instant Retrieval is designed for long-lived archive data that is rarely accessed but requires immediate retrieval when needed. It's not suitable for data with varying or unknown access patterns, as it would be cost-inefficient for frequently accessed data.
Option D: S3 One Zone-IA stores data in a single availability zone, which provides lower durability (99.999999999% vs 99.999999999% for standard). It's designed for infrequently accessed data that can be recreated. It's not suitable for data with unknown access patterns and doesn't provide the automatic optimization that Intelligent-Tiering offers.
Key AWS Concepts:
- S3 Intelligent-Tiering is the only storage class that automatically optimizes costs by moving objects between tiers based on access patterns.
- Operational efficiency means minimizing manual intervention and management overhead.
- Lifecycle configurations automate storage class transitions, making them more operationally efficient than manual approaches.
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