Crucial Exams

AWS Certified CloudOps Engineer Associate SOA-C03 Practice Question

A CloudFormation template deploys an Auto Scaling group across two private subnets in an existing VPC. Stack creation fails with the message "subnet-xxxx does not have enough available IP addresses for new ENIs". The company wants the stack to succeed without reducing instance capacity. Which action is the MOST appropriate remediation?

  • Edit the Launch Template to disable secondary network interfaces, thereby reducing the ENIs created per instance.

  • Associate an additional IPv4 CIDR block with the VPC, create new private subnets with a larger CIDR, update the template to reference them, and redeploy the stack.

  • Modify each existing subnet from /24 to /20 in the VPC console, then retry the CloudFormation deployment.

  • Decrease the Auto Scaling group's MaxSize parameter so the current subnets have enough free IP addresses.

AWS Certified CloudOps Engineer Associate SOA-C03
Deployment, Provisioning, and Automation
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