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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?

    Correct Answer: D

    Using AWS Transit Gateway is the most efficient solution to meet the requirement of minimal administrative overhead while allowing the applications to communicate with each other and the shared services VPC. AWS Transit Gateway provides centralized connectivity, allowing you to easily manage multiple VPCs using a hub-and-spoke model. This approach is scalable and simplifies network management, which is crucial when planning to scale up to more than 100 applications. Unlike VPC peering or software VPN solutions, transit gateway reduces the complexity of configuring and maintaining individual connections between each VPC.

Discussion
ScheldonOption: 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)

0bdf3af

D. https://docs.aws.amazon.com/whitepapers/latest/building-scalable-secure-multi-vpc-network-infrastructure/transit-gateway.html

muhammadahmer36Option: D

D. 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.

emakidOption: 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.

DanielWuTRTOption: D

the LEAST administrative overhead = transit gateway

HkayneOption: B

Correct answer is B