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.
This drill dissects a multi-region high availability and DR scenario, comparing active-active vs. active-passive architectures, VPC peering misconceptions, and Route 53 routing policy selections—with quantified FinOps impact for professional-level decision-making.
A global e-commerce company needs multi-region durability and availability for static web assets served from Amazon S3 buckets. This drill analyzes four architectural approaches with trade-offs in complexity, cost, and fault tolerance.
A mobile API running on 5 EC2 instances with Route 53 multi-value routing can’t handle traffic spikes. Should you refactor to serverless, containerize with EKS, add Auto Scaling with Lambda orchestration, or simply front with an ALB? This drill dissects the modernization spectrum for SAP-C02.
A digital marketing firm must build an efficient, scalable domain redirection service with multiple domain names, minimizing ops overhead while supporting HTTP and HTTPS. This drill clarifies the best design pattern and FinOps considerations.
A critical analysis of API Gateway custom domain configuration, focusing on the regional vs. edge-optimized endpoint decision and the often-overlooked ACM certificate region requirement that trips up SAA candidates.
This SAP-C02 scenario explores how to architect a multi-AZ, internet-facing TCP service with fixed IP addresses for client whitelisting. The challenge lies in balancing NLB capabilities, Elastic IP allocation strategies, and DNS configuration while maintaining cost efficiency and operational simplicity.
A multi-account DNS resolution failure reveals the critical difference between VPC association and authorization grants. This drill explores why correct sequencing of Route 53 cross-account operations matters more than DNS record configuration.
A professional-level analysis of automated failover strategies for multi-region applications, comparing Route 53 failover policies, Lambda-driven orchestration, and Global Accelerator approaches while balancing RTO requirements against budget constraints.
Designing multi-region API resilience requires balancing DNS routing strategies, regional Lambda deployments, and DynamoDB replication. This drill exposes the critical difference between edge-optimized endpoints and regional API Gateway deployments for disaster recovery.