Which of the following can be performed as a quick method to roll back to an earlier state, if necessary?

An administrator is performing an in-place upgrade on a quest VM operating system.

Which of the following can be performed as a quick method to roll back to an earlier state, if necessary?
A . A configuration file backup
B . A full backup of the database
C . A differential backup
D . A VM-level snapshot

View Answer

Answer: D

Explanation:

A VM-level snapshot is a point-in-time copy of the state and data of a virtual machine (VM). A VM-level snapshot can be used as a quick method to roll back to an earlier state, if necessary, as it can restore the VM to the exact condition it was in when the snapshot was taken. A VM-level snapshot can be useful for performing an in-place upgrade on a guest VM operating system, as it can allow the administrator to revert to the previous operating system version in case of any issues or errors.

Reference: CompTIA Cloud+ Certification Exam Objectives, page 10, section 1.5

Reference: https://cloud.google.com/compute/docs/tutorials/performing-in-place-upgrade-windows-server