Which task is the responsibility of AWS?

Explanations:

Configuring an S3 Lifecycle policy is the responsibility of the customer. AWS provides the tools, but users must define how they want their data to be managed, including transitions to cheaper storage classes and deletions.

Activating S3 Versioning is also the customer’s responsibility. While AWS provides the feature, it is up to the user to enable and configure it according to their data protection and retention strategies.

Configuring S3 bucket policies is the user’s responsibility. Bucket policies are user-defined rules that control access to the data in the S3 bucket, and AWS provides the mechanisms to implement these policies but does not configure them on behalf of the user.

Protecting the infrastructure that supports S3 storage is AWS’s responsibility. AWS manages the security and maintenance of the underlying hardware and software infrastructure, ensuring that S3 is available and secure against threats.