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ANS-C01 Exam - Question 131

A marketing company is using hybrid infrastructure through AWS Direct Connect links and a software-defined wide area network (SD-WAN) overlay to connect its branch offices. The company connects multiple VPCs to a third-party SD-WAN appliance transit VPC within the same account by using AWS Site-to-Site VPNs.

The company is planning to connect more VPCs to the SD-WAN appliance transit VPC. However, the company faces challenges of scalability, route table limitations, and higher costs with the existing architecture. A network engineer must design a solution to resolve these issues and remove dependencies.

Which solution will meet these requirements with the LEAST amount of operational overhead?

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Correct Answer: B

The best solution to address scalability, route table limitations, and higher costs while reducing operational overhead is to configure a transit gateway to attach the VPCs and configure a transit gateway Connect attachment for the third-party SD-WAN appliance transit VPC. This solution leverages transit gateway Connect, which provides native integration of SD-WAN virtual hubs with AWS Transit Gateway. It eliminates the need for multiple individual VPN connections, simplifies the overall network architecture, and offers a scalable and cost-effective method to connect VPCs efficiently.

Discussion

5 comments
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BalasmaniamOption: B
Jun 11, 2023

https://docs.aws.amazon.com/whitepapers/latest/aws-vpc-connectivity-options/aws-transit-gateway-sd-wan.html

vikasj1inOption: B
Feb 17, 2024

the use of AWS Transit Gateway with Transit Gateway Connect is a scalable and cost-effective solution to address the challenges of scalability, route table limitations, and higher costs associated with the existing architecture.

rarunachOption: B
Oct 5, 2023

Transit gateway connect is the preferred method for SD-WAN.

AradOption: B
Nov 5, 2023

B is the right answer.

Akshay0403
Jul 17, 2024

With the launch of AWS Transit Gateway Connect, there is now a native way to connect your SD-WAN infrastructure with AWS. This makes it easy to extend your SD-WAN into AWS without having to set up IPsec VPNs between SD-WAN network virtual appliances and Transit Gateway.