S3 lifecycle rules in AWS - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of S3 lifecycle rules?

S3 lifecycle rules help automatically manage objects in a bucket by moving them between storage classes or deleting them after a set time to save cost and keep data organized.

beginner

Name two common actions you can set in an S3 lifecycle rule.

You can set actions to transition objects to cheaper storage classes like Glacier or to expire (delete) objects after a certain number of days.

intermediate

How do lifecycle rules help reduce storage costs?

By moving older or less-used objects to cheaper storage classes or deleting them, lifecycle rules reduce the amount of expensive storage used, lowering costs.

intermediate

Can lifecycle rules be applied to specific objects in a bucket?

Yes, lifecycle rules can target objects using prefixes or tags to apply rules only to certain groups of objects.

advanced

What happens if multiple lifecycle rules apply to the same object?

Amazon S3 applies the most restrictive action from the matching rules to the object to avoid conflicts.

What is the main benefit of using S3 lifecycle rules?

A Automatically manage object storage and reduce costs

B Increase the size of S3 buckets

C Encrypt objects in the bucket

D Backup data to another region

Lifecycle rules automate moving or deleting objects to manage storage and reduce costs.

Which storage class is commonly used for archiving objects with lifecycle rules?

A S3 Standard

B S3 One Zone-IA

C S3 Glacier

D S3 Intelligent-Tiering

S3 Glacier is designed for long-term archiving and is often used in lifecycle transitions.

How can you target specific objects with lifecycle rules?

A By bucket name only

B Using object prefixes or tags

C By object size

D By object owner

Lifecycle rules can filter objects by prefixes or tags to apply actions selectively.

What does the 'expiration' action in a lifecycle rule do?

A Deletes objects after a set time

B Moves objects to Glacier

C Encrypts objects

D Copies objects to another bucket

Expiration deletes objects automatically after the specified time.

If two lifecycle rules conflict, how does S3 decide which to apply?

A Applies both actions

B Applies the least restrictive action

C Ignores both rules

D Applies the most restrictive action

S3 applies the most restrictive action to avoid conflicts.

Explain how S3 lifecycle rules help manage data storage and costs.

Think about moving old files to cheaper storage or deleting them.

Describe how you can apply lifecycle rules to only certain objects in an S3 bucket.

Consider how to pick specific files by name or label.