EC2 RDS Resilient Three-Tier Baseline
Build a resilient three-tier architecture with Auto Scaling EC2 instances, Application Load Balancer health checks, and RDS Multi-AZ with read replicas — a high-value SAP-C02 resilience and DR scenario.
Lab Overview
Deploy a complete resilient three-tier web architecture on AWS. Create security groups enforcing least-privilege tier isolation. Launch an RDS instance with Multi-AZ for automatic failover. Configure an Auto Scaling group behind an Application Load Balancer with health checks. Validate resilience by simulating instance and AZ failures — exactly the kind of architecture scenario tested in SAP-C02 Domain 2 and Domain 3.
What You'll Learn
Configure security groups for three-tier isolation
Deploy RDS Multi-AZ with automated failover
Set up Auto Scaling group with ALB and health checks
Validate resilience through failure simulation
Prerequisites
Understanding of EC2, RDS, Auto Scaling, and ALB
Familiarity with security groups and AWS CLI
Technologies Covered
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