AWS Certified Advanced Networking Specialty Practice Exam

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Prepare for the AWS Certified Advanced Networking Specialty Exam with detailed flashcards and multiple-choice questions. Each question includes hints and explanations. Ace your exam with confidence!

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In a peering arrangement between three VPCs (A, B, C), what is a true statement regarding connectivity?

Instances in VPC A can reach instances in VPC C directly
Instances in VPC B can reach instances in VPC A only
Instances in VPC A can reach instances in VPC C through VPC B
Instances in all VPCs can reach each other directly

The correct answer is: Instances in VPC A can reach instances in VPC C through VPC B

In a VPC peering arrangement, instances in one Virtual Private Cloud (VPC) cannot connect directly to instances in another VPC unless there is a direct peering connection established between those two VPCs. In the case described, none of the VPCs have a direct peering connection to each other. Since VPC A and VPC C do not have a direct peering relationship, the only feasible way for instances in VPC A to communicate with instances in VPC C is by routing the traffic through another VPC, which in this case is VPC B, assuming that there is a peering connection established between VPC A and VPC B, as well as VPC B and VPC C. Thus, for instances in VPC A to reach instances in VPC C, the communication must traverse through VPC B, which serves as an intermediary. This makes the statement about instances in VPC A reaching instances in VPC C through VPC B accurate.