AWS अपने global infrastructure को Regions (भौगोलिक स्थानों) और Availability Zones (region के भीतर isolated data centers) में व्यवस्थित करता है। उन्हें समझना ऐसे applications डिजाइन करने के लिए मौलिक है जो विश्वसनीय (fault-tolerant) और performant (low latency) हों।
Regions — भौगोलिक स्थान
A REGION is a geographic area with AWS infrastructure (e.g. us-east-1 Virginia,
eu-west-1 Ireland, ap-southeast-1 Singapore):
→ choose regions based on: proximity to USERS (lower latency), data RESIDENCY/
compliance (where data must legally reside), service availability, and cost
→ regions are isolated from each other (a region's issues don't affect others)
