A company is migrating applications to AWS and has established a Direct Connect link in a central network account. The company will have hundreds of AWS accounts and VPCs. Corporate on-premises systems must access AWS resources transparently and communicate with all VPCs. The company also wants to route cloud outbound traffic to the internet via the on-premises data center. Which combination of steps satisfies these requirements? (Choose three.)

The correct options address the requirements for centralized connectivity, inter-VPC communication, and controlled outbound internet access. Creating a Direct Connect gateway and a Transit Gateway in a central account, then attaching them via a transit VIF, centralizes the Direct Connect connection and allows all VPCs to access on-premises resources through the Transit Gateway. Sharing the Transit Gateway and attaching each VPC enables transparent communication between hundreds of VPCs and provides a single point for on-premises connectivity. Provisioning private subnets and routing all outbound internet traffic through on-premises NAT services via the Transit Gateway and customer gateway ensures that all internet egress is controlled and inspected by corporate security policies. Incorrect options: Creating a Direct Connect gateway and associating it with individual virtual private gateways in each account is not scalable for hundreds of VPCs and doesn't facilitate inter-VPC communication. Provisioning an internet gateway would allow direct internet access from AWS, bypassing the requirement to route traffic through the on-premises data center. VPC peering connections are not scalable for hundreds of VPCs and do not provide a centralized path to on-premises resources or controlled internet egress.