What You'll Be Tested On
- Multi-tier architecture design with loose coupling
- High availability and fault tolerance patterns
- Disaster recovery strategies (backup/restore, pilot light, warm standby, active-active)
- Decoupling with SQS, SNS, and EventBridge
- Database high availability (RDS Multi-AZ, Aurora Global)
- Infrastructure as code with CloudFormation
Key AWS Services in This Domain
Exam Tips for Domain 2
Know the RPO/RTO tradeoffs for each DR strategy.
Multi-AZ provides high availability; multi-region provides disaster recovery.
Use SQS to decouple components and handle traffic spikes gracefully.
Aurora Global Database enables cross-region disaster recovery with <1s replication lag.
Practice Domain 2 Questions
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