Question

question 22 1 pts to rollback or reverse an operating system patch you should use the patchs automatic uninstall utility use the applications automatic uninstall utility, or maintain a complete copy of the previous installation and reinstall over the upgrade make a complete backup of the system prior to the upgrade, then restore the entire system from the backup use the upgrades automatic uninstall utility, or reinstall the previous version question 23 1 pts which is longer for a reliable device? mtbf mttr

Explanation:

Question 22: Restoring from a full - system backup is a reliable way to rollback an OS patch. Other options may not fully reverse the patch changes.
Question 23: Mean Time Between Failures (MTBF) represents the average time between device failures for a reliable device, while Mean Time To Repair (MTTR) is the average time to repair a failed device. MTBF is typically longer for reliable devices.

Answer:

Question 22: Make a complete backup of the system prior to the upgrade, then restore the entire system from the backup
Question 23: MTBF