A software company is using three AWS accounts for each of its 10 development teams. The company has developed an AWS CloudFormation standard VPC template that includes three NAT gateways. The template is added to each account for each team. The company is concerned that network costs will increase each time a new development team is added. A solutions architect must maintain the reliability of the company’s solutions and minimize operational complexity. What should the solutions architect do to reduce the network costs while meeting these requirements?

Topic #: - All AWS Certified Solutions Architect - Professional Questions

A. Create a single VPC with three NAT gateways in a shared services account. Configure each account VPC with a default route through a transit gateway to the NAT gateway in the shared services account VPC. Remove all NAT gateways from the standard VPC template. Most Voted
B. Create a single VPC with three NAT gateways in a shared services account. Configure each account VPC with a default route through a VPC peering connection to the NAT gateway in the shared services account VPC. Remove all NAT gateways from the standard VPC template.
C. Remove two NAT gateways from the standard VPC template. Rely on the NAT gateway SLA to cover reliability for the remaining NAT gateway.
D. Create a single VPC with three NAT gateways in a shared services account. Configure a Site-to-Site VPN connection from each account to the shared services account. Remove all NAT gateways from the standard VPC template.

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