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Global Infrastructure (Latency section)

Notes: It's always about data recovery strategies and reducing latency... Just understand how the cloud works.

Route 53

It is a managed DNS. You can register domain names.

Route 53 Routing Policies

  • Simple routing policy: Go to one IP
  • Weighted routing policy: Share the traffic between IPs
  • Latency Routing Policy: Send the closest IP
  • Failover routing policy: Send the IP that works in case of an unhealthy server

CloudFront

CDN: Cache your website and reduce latency with edge locations.
Also provides DDOS protection.
Can take S3 or any custom origin as input.

S3 Transfer Acceleration

Upload/Download files to/from edge locations that will interact with S3 for you.
It will reduce latency.

Global Accelerator

Use edge locations as proxies that will use the private AWS network.
Reduce Latency. No caching.

AWS Outposts

Server racks that offer the same AWS infrastructure for your own servers.
Designed for hybrid clouds.

AWS WaveLength

Reduce latency for 5G networks with special places that serve directly to the 5G network.

AWS Local Zones

Precise places that serve AWS services for app that requires very low latency.

Global App Architecture

  • Single Region, Single AZ: Simple to setup but only available in one physical place
  • Single Region, Multi AZ: Not optimized for latency but OK for recovery
  • Multi Region, Active-Passive: Optimize the read latency with passive instances. Improves recovery.
  • Multi Region, Active-Active: Optimize the r/w latency with active instances. Improves recovery.