Topic 1 Question 214
A company ran out of IP address space in one of the Availability Zones in an AWS Region that the company uses. The Availability Zone that is out of space is assigned the 10.10.1.0/24 CIDR block. The company manages its networking configurations in an AWS CloudFormation stack. The company’ VPC is assigned the 10 10.0.0/16 CIDR block and has available capacity in the 10.10.1.0/22 CIDR block.
How should a network specialist add more IP address space in the existing VPC with the LEAST operational overhead?
Update the AWS::EC2::Subnet resource for the Availability Zone in the CloudFormation stack. Change the CidrBlock property to 10.10.1.0/22.
Update the AWS::EC2::VPC resource in the CloudFormation stack. Change the CidrBlock property to 10.10.1.0/22.
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.
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.
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- 正解だと思う選択肢: D
By creating a new subnet with a different CIDR block (10.10.2.0/24) within the same Availability Zone, you can expand the IP address space available for that AZ without altering existing configurations. This approach is straightforward and minimizes the risk of disruption to the existing resources.
This option allows you to quickly and easily increase the available IP space without needing to modify or replace existing subnets, which could cause service disruptions or require reassigning resources within the AZ. It avoids the complexities and potential issues associated with resizing subnets or VPCs, which can be more involved and risky.
Changing the CIDR block of an existing subnet is not supported directly because subnets cannot be resized or modified after creation. Doing so would require deleting and recreating the subnet, which would disrupt any resources tied to it.
👍 6Cacheirez2024/08/13 - 正解だと思う選択肢: D
This is D
👍 2qomtodie2024/08/30 - 正解だと思う選択肢: A
Answer is A
👍 1aragon_saa2024/08/13
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