Amazon S3 supports Read after Write consistency when we create a new
object by PUT. It means as soon as we Write a new object, we can access it.
Amazon S3 supports Eventual Consistency when we overwrite an existing
object by PUT. Eventual Consistency means that the effect of overwrite will
not be immediate but will happen after some time.
For deletion of an object, Amazon S3 supports Eventual Consistency after
DELETE.