AWS serves over a million active customers in more than 190 countries. They are steadily expanding the global infrastructure to help customers achieve lower latency and higher throughput, and to ensure that customers data resides only in the region they specifies. AWS data centers are available in multiple locations worldwide.
AWS infrastructure is built around regions and availability zones. In a region, there are multiple availability zones. Each region is strategically selected by AWS around the world. AWS plans at least three availability zones in each region. You can have more than that in some of the regions. These availability zones across the regions are connected with very low latency networks so that you can build fault tolerant and highly available applications. At the time of writing this book, there were 16 regions and 42 availability...