The immediate consequence here is that Amazon EC2 customers will need to deploy copies of the same serverinstance in multiple regions to guarantee 100% system uptime, assuming, of course, that the wildly unlikely scenario that multiple Amazon cloud computing regions experience outages at the same time never transpires.
Type in "Paypal.com, " for instance, and the DNS server owned by your broadband provider converts that name into the Internet Protocol address where the site is hosted.