A storage solution is required in AWS to store videos uploaded by the user. After accessing these videos frequently for a period of a month, these videos can be deleted. How could this be implemented in the most cost-effective manner?

Answer options:

A.Use EBS Volumes to store the videos. Create a script to delete the videos after a month.
B.Configure object expiration lifecycle policy rule on the S3 bucket and the policy will take care of deleting the videos on the completion of 30 days.
C.Store the videos in Amazon Glacier and then use Lifecycle Policies.
D.Store the videos using Stored Volumes. Create a script to delete the videos after a month.

Correct Answer – B
AWS Documentation mentions the following on Lifecycle Policies.
Lifecycle configuration enables you to specify the lifecycle management of objects in a bucket. The configuration is a set of one or more rules, where each rule defines an action for Amazon S3 to apply to a group of objects. These actions can be classified as follows.
Transition actions – In which you define when objects transition occurs to another storage class. For example, you may choose transition objects to the STANDARD_IA (IA, for infrequent access) storage class 30 days after creation or archive objects to the GLACIER storage class one year after creation.
Expiration actions – In which you specify when the objects expire. Then Amazon S3 deletes the expired objects on your behalf.
 For more information on AWS S3 Lifecycle policies, please visit the following URL-
https://docs.aws.amazon.com/AmazonS3/latest/dev/object-lifecycle-mgmt.html