Topic 1 Question 899

AWS Certified Solutions Architect - Associate

Topic 1 Question 899
A company is migrating five on-premises applications to VPCs in the AWS Cloud. Each application is currently deployed in isolated virtual networks on premises and should be deployed similarly in the AWS Cloud. The applications need to reach a shared services VPC. All the applications must be able to communicate with each other.

If the migration is successful, the company will repeat the migration process for more than 100 applications.

Which solution will meet these requirements with the LEAST administrative overhead?
- Deploy software VPN tunnels between the application VPCs and the shared services VPC. Add routes between the application VPCs in their subnets to the shared services VPC.
- Deploy VPC peering connections between the application VPCs and the shared services VPC. Add routes between the application VPCs in their subnets to the shared services VPC through the peering connection.
- Deploy an AWS Direct Connect connection between the application VPCs and the shared services VPAdd routes from the application VPCs in their subnets to the shared services VPC and the applications VPCs. Add routes from the shared services VPC subnets to the applications VPCs.
- Deploy a transit gateway with associations between the transit gateway and the application VPCs and the shared services VPC. Add routes between the application VPCs in their subnets and the application VPCs to the shared services VPC through the transit gateway.
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- 正解だと思う選択肢: D
  Answer: D
  
  https://aws.amazon.com/transit-gateway/
  
  Looks like the best solution would be transit gateway. It will allow for inter-VPC communication for all 5 applications/VPC, reach shared resource/VPC and in the future it will be easy to allow for inter-communication between even 100 VPCs (applications)
  
  👍 5
  Scheldon2024/05/23
- D. https://docs.aws.amazon.com/whitepapers/latest/building-scalable-secure-multi-vpc-network-infrastructure/transit-gateway.html
  
  👍 3
  0bdf3af2024/05/23
- 正解だと思う選択肢: D
  AWS Transit Gateway:
  
  Centralized Connectivity: AWS Transit Gateway provides a hub-and-spoke model for connecting multiple VPCs, simplifying network management by providing a single point of connectivity for all VPCs. Scalability: It is designed to handle many VPCs, making it suitable for scaling beyond the initial five applications to more than 100 applications. Reduced Administrative Overhead: Managing VPC peering connections or VPN tunnels for each pair of VPCs would become complex and difficult to manage at scale. Transit Gateway simplifies this by providing centralized routing and connectivity.
  👍 3
  emakid2024/06/28
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