Exam AWS-SysOps topic 1 question 875 discussion

Amazon S3 inventory provides a scheduled report of the objects and their corresponding metadata for a bucket. By enabling Amazon S3 inventory for the specific S3 bucket in question, the administrator can collect comprehensive information about the objects stored in the bucket, including information about older versions of objects. Once the inventory is generated, the administrator can query the inventory data to identify the total storage consumed by previous versions of objects. This will help identify if storage costs are indeed being driven by older versions of objects that are consuming space.

A is the answer

A S3 Inventory also provides you with more information about your objects than you would get by LIST operation—things like delete markers, replication status, and multipart upload flags are shown. These reports can be sent to another bucket, or even to another AWS account if defined by a specific workflow. On top of everything, using S3 Inventory provides you with some cost savings, by being 50% cheaper to use compared to using multiple LIST operations.

A is the answer

I think A Amazon S3 inventory helps you manage your storage by creating lists of the objects in an S3 bucket on a defined schedule. You can configure multiple inventory lists for a bucket. The inventory lists are published to CSV, ORC, or Parquet files in a destination bucket. https://docs.aws.amazon.com/AmazonS3/latest/userguide/configure-inventory.html