# AWS Global Infrastructure

### Aws Architecture

1. AWS is divided into 3 main parts
    
    * AWS region indicates a physical location around the world where AWS has its data centers to host and run its cloud computing services. Each region is designed to be isolated from the others in terms of network connectivity, power supply, and physical security to ensure high availability, fault tolerance, and data durability.
        
    * There is no need for us to be present in a specific region to choose the region. Using the dashboard we can change to a different region, but when we do that we must take care that the service we are trying to use should be available in the particular and local rules are applied to us
        
    * Availability Zones: These are the actual data centers and are present inside the regions. Generally, 3 min but a max of 6 is possible, the main advantage of this is to avoid single point of failure. Each AZ is low power , low network capacity.
        
    * Edge Locations: these are basically used. to store a cache and provide a direct connection to the AWS server.