A company has two VPCs that are in the same AWS account. One VPC is located in the us-east-1 Region, and the other VPC is located in the us-west-2 region. The VPCs have an active VPC peering connection with each other, and the route tables for each VPC are configured to route network traffic properly between each VPC. An Amazon Aurora DB instance exists in the VPC in us-east-1, and the DB instance’s security group controls access to the DB instance. An Auto Scaling group is running in the VPC in us-west-2. The Auto Scaling group is continually adding and removing Amazon EC2 instances because of fluctuations in the demand for capacity. Every EC2 instance that launches as part of the Auto Scaling group belongs to a security group that is specific to the Auto Scaling group. A security engineer needs to configure a solution that allows the EC2 instances to access the DB instance that is located in us-east-1. Which solution will meet these requirements with the LEAST amount of effort?

Topic #: - All AWS Certified Security - Specialty Questions

A. Add the ID of the DB instance’s security group to the inbound rules of the EC2 instances’ security group.
B. Add the subnets used by the Auto Scaling group of the VPC in us-west-2 to the DB instance’s security group,
C. Add the private IP address of each EC2 instance from the Auto Scaling group to the DB instance’s security group.
D. Add the ID of the EC2 instances’ security group to the inbound rules of the DB instance’s securely group.

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