1Network Design Fundamentals

• 1.1VPC and IP Addressing Design

  Understand the foundation of network design—VPC, CIDR, subnets, non-overlapping address planning, and multi-AZ. The initial design dictates later scalability and connectivity.

• 1.2Subnet and Routing Design

  Understand traffic paths—public/private subnets, route tables, internet gateway, and NAT gateway. The route table decides whether a subnet is public.

• 1.3Multi-VPC and Multi-Account Connectivity Design

  Understand how to connect multiple networks—choosing among VPC peering, Transit Gateway, and PrivateLink. Scale and intent drive the choice.