Among the four s3 storage classes, which storage class is used for the data that is need to be accessed rarely Nevertheless, a rapid response is required when needed.

Amazon Web Services, Inc. (started in 2006) is a subsidiary of Amazon that provides on-demand cloud computing platforms and APIs to individuals, companies, and governments, on a metered, pay-as-you-go basis. Oftentimes, clients will use this in combination with autoscaling.

Basically, it is a cloud computing provider and the main profit source for Amazon.