> Amazon EC2 is hosted in multiple locations world-wide. These locations are composed of regions and Availability Zones. Each region is a separate geographic ar

> Amazon EC2 is hosted in multiple locations world-wide. These locations are composed of regions and Availability Zones. Each region is a separate geographic area. Each region has multiple, isolated locations known as Availability Zones. Amazon EC2 provides you the ability to place resources, such as instances, and data in multiple locations. Resources aren't replicated across regions unless you do so specifically. Source: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-regions-availability-zones.html http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-reg...