Infrastructure

AWS Global Infrastructure

1. AWS Regions

• Located all around the world
• Each region is named such as us-east-1, eu-west-3, etc
• Cluster of data centres
• Most AWS services are region-scoped

How to choose an AWS Region?

Depends on - 

• Compliance with data governance and legal requirements
• Proximity to the customers (reduce latency)
• Available Services within a Region - Not all region have all the AWS services 
• Pricing - varies from region to region

2. AWS Availability Zones

• Each Region has usually 3, minimum 2 and maximum 6 AZs
• Each AZ is composed of one or more discrete DCs with redundant power, networking and connectivity.
• AZs are separate from each other to isolate from disasters.
• They're connected with high bandwidth, ultra-low latency networking

3. AWS Edge locations / points of presence

• AWS has more than 200 points of presence in 84 cities across 42 countries.
• Content is delivered to end users with lower latency

Key Services

AWS Global Services

• Identity and Access Management (IAM)
• Route 53 (DNS Service)
• CloudFront (Content Delivery Network)
• WAF (Web Application Firewall)

Region-scoped Services

• Amazon EC2 (Infra as a service)
• Elastic Beanstalk (Platform as a service)
• Lamba (Function as a service)
• Rekognition (Software as a service)