AWS Certified Advanced Networking - Specialty
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A company has exhausted the IP address space in one of its Availability Zones within an AWS Region, which is assigned the 10.10.1.0/24 CIDR block. The company's VPC uses the 10.10.0.0/16 CIDR block and has available capacity within the 10.10.1.0/22 CIDR block. The networking configurations are managed through an AWS CloudFormation stack. What is the most efficient method for a network specialist to expand the IP address space in the existing VPC with minimal operational overhead?
A
Update the AWS::EC2::Subnet resource for the Availability Zone in the CloudFormation stack. Change the CidrBlock property to 10.10.1.0/22.
B
Update the AWS::EC2::VPC resource in the CloudFormation stack. Change the CidrBlock property to 10.10.1.0/22.
C
Copy the CloudFormation stack. Set the AWS::EC2::VPC resource CidrBlock property to 10.10.0.0/16. Set the AWS::EC2::Subnet resource CidrBlock property to 10.10.1.0/22 for the Availability Zone.
D
Create a new AWS::EC2::Subnet resource for the Availability Zone in the CloudFormation stack. Set the CidrBlock property to 10.10.2.0/24.