Which action will accomplish this?

A company hosts a static website within an Amazon S3 bucket. A solutions architect needs to ensure that data can be recovered in case of accidental deletion.

Which action will accomplish this?
A . Enable Amazon S3 versioning
B . Enable Amazon S3 Intelligent-Tiering.
C . Enable an Amazon S3 lifecycle policy
D . Enable Amazon S3 cross-Region replication.

View Answer

Answer: B

Explanation:

Data can be recover if versioning enable, also it provide a extra protection like file delete,MFA delete. MFA Delete only works for CLI or API interaction, not in the AWS Management Console. Also, you cannot make version DELETE actions with MFA using IAM user credentials. You must use your root AWS account. https://aws.amazon.com/blogs/security/securing-access-to-aws-using-mfa-part-3/

Object Versioning

Use Amazon S3 Versioning to keep multiple versions of an object in one bucket. For example, you could store my-image.jpg (version 111111) and my-image.jpg (version 222222) in a single bucket. S3 Versioning protects you from the consequences of unintended overwrites and deletions. You can also use it to archive objects so that you have access to previous versions.

You must explicitly enable S3 Versioning on your bucket. By default, S3 Versioning is disabled. Regardless of whether you have enabled Versioning, each object in your bucket has a version ID. If you have not enabled Versioning, Amazon S3 sets the value of the version ID to null. If S3 Versioning is enabled, Amazon S3 assigns a version ID value for the object. This value distinguishes it from other versions of the same key.

https://docs.aws.amazon.com/AmazonS3/latest/dev/ObjectVersioning.html