Câu 259: AWS Certified Solutions Architect - Associate SAA-C03(New)

An application runs on an Amazon EC2 instance that has an Elastic IP address in VPC A. The application requires access to a database in VPC B. Both VPCs are in the same AWS account. Which solution will provide the required access MOST securely?

1. A. Create a DB instance security group that allows all traffic from the public IP address of the application server in VPC A.
2. B. Configure a VPC peering connection between VPC A and VPC B. — đáp án hiện tại
3. C. Make the DB instance publicly accessible. Assign a public IP address to the DB instance.
4. D. Launch an EC2 instance with an Elastic IP address into VPC B. Proxy all requests through the new EC2 instance.