An administrator has encountered an error while patching a virtualized guest machine. Which of the following technologies would allow the administrator to restore to a pre-patched state the FASTEST?

Cloning creates a separate, independent copy of a VM, which is not designed for quickly reverting the original VM to a previous state after an error.

Bare Metal Restore is a process for recovering a physical machine from scratch and is not applicable for quickly reverting a virtualized guest.

An OS restore typically involves reinstalling the operating system or restoring from a full system backup, which is a much slower process than reverting a VM snapshot.

A snapshot captures the exact state of a virtual machine, including its disk files and, optionally, its memory, at a specific point in time. Reverting to a snapshot allows the administrator to instantly undo all changes made since the snapshot was taken, restoring the VM to its precise pre-patched condition.