Domain 3: Continuous Improvement for Existing Solutions

This domain constitutes 25% of the exam and focuses on optimizing architectures that are already running.

Key Areas

• 3.1 Operational Excellence: Observability and automation.
• 3.2 Security Improvement: Secrets management, compliance, and auditing.
• 3.3 Performance Improvement: Bottleneck identification and edge computing.
• 3.4 Reliability Improvement: Failure remediation and handling growth.
• 3.5 Cost Optimization Opportunities: Resource analysis and billing granularity.