A company has a large Amazon S3 bucket storing millions of images. They want to optimize storage costs. Some images are accessed millions of times a day, while others are never accessed after the first week. The access patterns are highly unpredictable and change daily. What is the MOST cost-effective storage strategy?

Answer options:

Create a Lifecycle policy to move objects to S3 Standard-IA after 30 days.

Transition all objects to the S3 Intelligent-Tiering storage class.

Use S3 Glacier Flexible Retrieval for all images.

Write a Lambda function to analyze S3 access logs and move objects manually.

How to approach this question

Match 'unpredictable access patterns' with S3 Intelligent-Tiering.

Full Answer

B.Transition all objects to the S3 Intelligent-Tiering storage class.✓ Correct

Amazon S3 Intelligent-Tiering is designed to optimize costs by automatically moving data to the most cost-effective access tier based on access frequency, without performance impact or retrieval fees. It is ideal for unpredictable workloads.

Common mistakes

Choosing Standard-IA, which penalizes you with retrieval fees if data becomes hot again.

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