AWS Certified Advanced Networking – Specialty ANS-C00 – Question384

A publishing company recently merged with an ecommerce company. Each company uses a VPC to run compute resources. The two VPCs have overlapping CIDR ranges. The publishing company needs to access an internal application that runs on Amazon EC2 instances in an Auto Scaling group across multiple Availability Zones in the ecommerce company VPC.
Which set of actions will provide the needed interconnectivity between the VPCs?

A.
1. Create a Network Load Balancer (NLB) for the application in the ecommerce company VPC. Configure the NLB for the Availability Zones that the target instances use. 2. Create a VPC endpoint service configuration, and specify the NLB. Add the publishing company's AWS account as a principal to the allow list. 3. Create interface endpoint connections to the service in the publishing company VPC in the same Availability Zones as the NLB.
B. 1. Create a VPC peering connection between the ecommerce company VPC and the publishing company VPC. 2. Update the route tables in both VPCs with routes to the attached VPC. 3. Update security groups to allow traffic from the publishing company VPC to the application in the ecommerce company VPC.
C. 1. Create an Application Load Balancer (ALB) for the application in the ecommerce company VPC. Configure the ALB for all Availability Zones. 2. Create a VPC endpoint service configuration, and specify the ALB. Add the publishing company's AWS account as a principal to the allow list. 3. Create an interface endpoint connection from the publishing company VPC to the service.
D. 1. Create a VPC peering connection between the ecommerce company VPC and the publishing company VPC. 2. Update the route tables in both VPCs with routes to the attached VPC. 3. Update the network ACLs to allow traffic between subnets in the publishing company VPC and subnets in the ecommerce company VPC.