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Which approach will meet these requirements?

A company is running a tone-of-business (LOB) application on AWS to support its users. The application runs in one VPC. with a backup copy in a second VPC in a different AWS Region for disaster recovery. The company has a single AWS Direct Connect connection between its on-premises network and AWS. The connection terminates at a Direct Connect gateway

All access to the application must originate from the company’s on-premises network, and traffic must be encrypted in transit through the use of Psec. The company is routing traffic through a VPN tunnel over the Direct Connect connection to provide the required encryption.

A business continuity audit determines that the Direct Connect connection represents a potential single point of failure for access to the application. The company needs to remediate this issue as quickly as possible.

Which approach will meet these requirements?
A . Order a second Direct Connect connection to a different Direct Connect location. Terminate the second Direct Connect connection at the same Direct Connect gateway.
B. Configure an AWS Site-to-Site VPN connection over the internet Terminate the VPN connection at a virtual private gateway in the secondary Region
C. Create a transit gateway Attach the VPCs to the transit gateway, and connect the transit gateway to the Direct Connect gateway Configure an AWS Site-to-Site VPN connection, and terminate it at the transit gateway
D. Create a transit gateway. Attach the VPCs to the transit gateway, and connect the transit gateway to the Direct Connect gateway. Order a second Direct Connect connection, and terminate it at the transit gateway.

Answer: C

Explanation:

Create a transit gateway. Attach the VPCs to the transit gateway, and connect the transit gateway to the Direct Connect gateway. Configure an AWS Site-to- Site VPN connection, and terminate it at the transit gateway https://aws.amazon.com/premiumsupport/knowledge-center/dx-configure-dx-and-vpn-failover-tgw/

All access to the application must originate from the company’s on-premises network and traffic must be encrypted in transit through the use of IPsec. = need to use VPN.

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