QuestionQ247

Network Design

Company A has recently acquired Company B. Company A operates 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 resources in its production environment in the us-east-1 Region.

Company B runs applications across multiple VPCs in the us-west-2 Region within a single AWS account. A transit gateway connects all of Company B's application VPCs. The CIDR blocks of the two companies do not overlap.

Company A must use the existing Direct Connect connection to access Company B’s applications from the on-premises environment.

Which solution meets 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.
Explanation

A transit gateway can be associated with an existing Direct Connect gateway that is owned by another AWS account. The transit gateway owner creates the association proposal, and the Direct Connect gateway owner accepts it. This association lets the existing transit VIF and Direct Connect gateway provide on-premises connectivity to the VPCs attached to Company B’s transit gateway, including those in a different Region.

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