Learn about the two key actions, transition and expiration, that Amazon S3 lifecycle rules can apply to objects for cost-effective storage management. Understand how these actions help optimize your S3 storage.
Table of Contents
Question
Lifecycle rules define the actions that Amazon S3 can apply to a group of objects to store them cost effectively. Which two types of actions can lifecycle rules apply to an object? (Select TWO.)
A. Transition actions
B. Duplication actions
C. Archive actions
D. Expiration actions
E. Alert actions
Answer
A. Transition actions
D. Expiration actions
Explanation
Lifecycle rules can apply transition actions, which move an object down from one storage class to another, and expiration actions, which expire and delete objects. Moving and deleting objects when they are no longer needed in the object lifecycle saves storage costs.
Transition actions allow you to define when objects should be moved to a different storage class based on the object’s age or a specific date. For example, you could configure a lifecycle rule to transition objects from the Standard storage class to the Infrequent Access (Standard-IA) class 30 days after creation, and then to the Glacier storage class after 90 days. This helps reduce storage costs for objects that are infrequently accessed over time.
Expiration actions let you specify when Amazon S3 should permanently delete objects based on age or a specific date. This is useful for automatically removing objects that are no longer needed after a certain period, such as log files or temporary data. By setting expiration actions, you can avoid accumulating unnecessary data and optimize storage usage.
The other options mentioned are not valid Amazon S3 lifecycle rule actions:
- Duplication actions are not a supported S3 lifecycle rule action. S3 does not automatically duplicate objects based on lifecycle rules.
- Archive actions are not a distinct action type. Archiving objects to lower-cost storage like Glacier is achieved through transition actions.
- Alert actions are not a part of S3 lifecycle rules. While you can set up monitoring and alerts for S3 events, these are not directly controlled by lifecycle rules.
By leveraging transition and expiration actions in Amazon S3 lifecycle rules, you can effectively manage the storage lifecycle of your objects, moving them to appropriate storage classes and deleting them when no longer needed. This helps optimize storage costs and maintain a clean and efficient S3 environment.
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