This pillar teaches the decision logic behind AWS hybrid DNS architecture. Learn when to use Route 53 Resolver endpoints, understand forwarding rule configurations, and master the DNS resolution patterns that appear throughout SAP-C02.
A hybrid enterprise needs to connect hundreds of VPCs across AWS accounts to on-premises infrastructure while maintaining granular routing control. This drill examines Transit Gateway architecture, cross-account sharing via AWS RAM, and the FinOps implications of centralized vs. distributed network topologies.
A financial services firm needs to centrally manage global office IP ranges across 50+ AWS accounts. This drill dissects why VPC Prefix Lists with AWS RAM outperform S3-based automation and AWS Config remediation in scalability, cost, and operational simplicity.