Course → 3 · Architect for SAA → HA, cost & security patterns
3 · Architect for SAA
High availability patterns
15 min · Module 6
Design for AZ failure first: multi-AZ ALB/ASG/RDS. For Region failure, use backup/DR strategies (backup/restore, pilot light, warm standby, multi-Region active). Match RPO/RTO to cost.
Example / notes
# AZ HA (common exam default)
# ≥2 AZs · ALB · ASG · RDS Multi-AZ · decouple with SQS when useful
# Region DR: snapshots/AMI replication · Route 53 failover · Aurora Global (when fits)Practice in Lab: /lab/scenarios/three-tier/
Modules in this track
- 6. HA, cost & security patterns
- 7. Migration & hybrid scenarios