Examtopics

If you modify your firewall rules, it could prevent traffic from flowing to your VM. You can't attach the VM instance's disk to a new instance without detaching it from the existing instance first, which would require shutting down the instance. If you create a startup script to collect information, you will have to restart your VM instance to run the script. You can view the serial console output without disrupting traffic. Running commands in the interactive serial console, on the other hand, could disrupt operations. Connecting to port 22 using netcat will only affect the SSH server on the VM, since that is the only service that listens on port 22. You can create a snapshot of a VM instance's disk without disrupting the VM's operation. Reference: https://cloud.google.com/compute/docs/troubleshooting#ssherrors