Câu 65: AWS Certified Solutions Architect - Associate SAA-C03(New)

A solutions architect is developing a VPC architecture that includes multiple subnets. The architecture will host applications that use Amazon EC2 instances and Amazon RDS DB instances. The architecture consists of six subnets in two Availability Zones. Each Availability Zone includes a public subnet, a private subnet, and a dedicated subnet for databases. Only EC2 instances that run in the private subnets can have access to the RDS databases. Which solution will meet these requirements?

1. A. Create a new route table that excludes the route to the public subnets' CIDR blocks. Associate the route table with the database subnets.
2. B. Create a security group that denies inbound traffic from the security group that is assigned to instances in the public subnets. Attach the security group to the DB instances.
3. C. Create a security group that allows inbound traffic from the security group that is assigned to instances in the private subnets. Attach the security group to the DB instances. — đáp án hiện tại
4. D. Create a new peering connection between the public subnets and the private subnets. Create a different peering connection between the private subnets and the database subnets.