单选题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？（）A CloningB Bare Metal RestoreC OS RestoreD Snapshot
题目
单选题
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？（）
A
Cloning
B
Bare Metal Restore
C
OS Restore
D
Snapshot