text: Amazon has many regions all across the globe. Inside each region, there are one or more 
  
  Availability Zones located tens of miles apart. The distance is near enough for low latency — 
  
  the gap between requesting and receiving a response, and far enough to reduce the chance that 
  
  multiple zones are aﬀected if a disaster happens. 
  
  Each region is identiﬁed by a code, such as "us-west-1", "us-east-1" or "eu-west-2". Within each 
  
  region, the multiple isolated locations known as*Availability Zones*or AZs are identiﬁed with the 
  
  region code followed by a letter identiﬁer. For example, us-east-1a. AWS handles deploying to 
  multiple availability zones within a region for resilience. 
  
  **Amazon Resource Name (ARN)**
  
  Services are identiﬁed with regional endpoints. The general syntax of a regional endpoint is as 
  
  follows: 