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Difficulty: EasyAmazon S3 Storage Class and Lifecycle Optimization

A SysOps administrator is configuring an Amazon S3 Lifecycle policy to optimize storage costs for an organization's data. Which TWO storage class transitions are valid and supported by S3 Lifecycle rules?

  1. S3 Standard to S3 Glacier Flexible RetrievalAnswer
  2. S3 Standard-IA to S3 Intelligent-TieringAnswer
  3. C
    S3 Glacier Flexible Retrieval to S3 Standard
  4. D
    S3 One Zone-IA to S3 Standard-IA
  5. E
    S3 Glacier Deep Archive to S3 Standard-IA

Answer

Transitioning from S3 Standard to S3 Glacier Flexible Retrieval, and transitioning from S3 Standard-IA to S3 Intelligent-Tiering.
Amazon S3 Lifecycle transition rules support moving objects from warmer storage classes to colder, cheaper, or archive storage classes. Transitioning from S3 Standard to S3 Glacier Flexible Retrieval is a standard downward transition path. Transitioning from S3 Standard-IA to S3 Intelligent-Tiering is also supported, allowing AWS to manage access patterns automatically.

Step-by-Step Solution

1
Analyze S3 Lifecycle transition direction rules.
S3 Lifecycle rules support transitions from warmer (more active) storage classes to colder (less active/archive) storage classes.
This helps identify valid downward transitions and rule out invalid upward transitions.
2
Evaluate redundancy rules for S3 Lifecycle transitions.
Transitions from lower-redundancy storage classes (such as One Zone-IA) to higher-redundancy storage classes (such as Standard-IA) are not supported.
This eliminates options that attempt to increase storage redundancy through lifecycle policies.
3
Identify the two valid transitions from the options provided.
Transitioning S3 Standard to S3 Glacier Flexible Retrieval, and transitioning S3 Standard-IA to S3 Intelligent-Tiering are supported.
These match the allowed transition paths documented in the S3 Lifecycle transition matrix.

Key Concept

Amazon S3 Lifecycle transition rules and supported storage class paths.
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Topics

Amazon S3 Storage Class and Lifecycle Optimization

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