Learn the best solution for connecting an AWS hybrid environment to an acquired company’s VPC applications using Direct Connect, Direct Connect gateway, and transit gateway. Discover how to seamlessly integrate networks post-acquisition.
Table of Contents
Question
Company A recently acquired Company B. Company A has a hybrid AWS and on-premises environment that uses a hosted AWS Direct Connect connection, a Direct Connect gateway, and a transit gateway. Company A has a transit VIF to access the resources in its production environment in the us-east-1 Region.
Company B has applications that run across multiple VPCs in the us-west-2 Region in a single AWS account. A transit gateway connects all Company B’s application VPCs. The CIDR blocks for both companies do not overlap.
Company A needs to use the existing Direct Connect connection to access Company B’s applications from the on-premises environment.
Which solution will meet these requirements?
A. Create a new Direct Connect gateway in the Company B account. Associate the Company B transit gateway with the new Direct Connect gateway. Create a transit VIF on the existing hosted connection for Company B.
B. Create an association proposal from the Company B account to associate the Company B transit gateway with the Company A Direct Connect gateway. Accept the transit gateway association proposal by logging into the Company A account.
C. Create multiple virtual private gateways. Attach the virtual private gateways to each of Company B’s application VPCs. Create a hosted private VIF for each virtual private gateway.
D. Create a new Direct Connect gateway in the Company B account. Associate the Company B transit gateway with the new Direct Connect gateway. Create a hosted private VIF for Company B.
Answer
B. Create an association proposal from the Company B account to associate the Company B transit gateway with the Company A Direct Connect gateway. Accept the transit gateway association proposal by logging into the Company A account.
Explanation
Since Company A already has a Direct Connect gateway associated with a transit gateway, the most efficient approach is to leverage these existing resources to access Company B’s applications. By creating a transit gateway association proposal from Company B’s account to Company A’s Direct Connect gateway, the two networks can be connected without needing to provision additional Direct Connect gateways or virtual interfaces (VIFs).
Once the proposal is accepted in Company A’s account, the existing hosted Direct Connect connection and transit VIF can be used to route traffic from Company A’s on-premises environment through the Direct Connect gateway, Company A’s transit gateway, Company B’s transit gateway, and finally to Company B’s application VPCs in the us-west-2 region.
The other options are not ideal because:
A. Creating a new Direct Connect gateway and transit VIF for Company B would be redundant and unnecessary, as Company A’s existing infrastructure can be used.
C. Creating multiple virtual private gateways and hosted private VIFs for each of Company B’s VPCs would be a complex and inefficient solution compared to leveraging the existing transit gateways.
D. Similar to option A, creating a new Direct Connect gateway and hosted private VIF for Company B is unnecessary when Company A’s infrastructure can be utilized.
By associating the two companies’ transit gateways, the post-acquisition network integration can be achieved seamlessly and efficiently using the existing AWS Direct Connect and transit gateway resources.
Amazon AWS Certified Advanced Networking – Specialty ANS-C01 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Amazon AWS Certified Advanced Networking – Specialty ANS-C01 exam and earn Amazon AWS Certified Advanced Networking – Specialty ANS-C01 certification.