Question

A cloud engineer deploys a new virtual machine using an automation script that has worked reliably for months. This time the deployment fails partway through with an error indicating the specified subnet is not valid for the chosen availability zone. The VM size, image, and IAM permissions are unchanged and confirmed correct. Following a structured troubleshooting methodology, what is the MOST likely root cause?

Accepted Answer

The script references a subnet that resides in a different availability zone than the one requested for the VM, causing a resource placement conflict

Answer

The VM image has become corrupted and must be rebuilt from the golden image

Answer

The IAM role attached to the automation account lost permission to create network interfaces

Answer

The account has exhausted its regional vCPU quota, blocking the deployment