A systems administrator is performing an OS upgrade on a production VM. Which of the following actions should the administrator take before the upgrade to ensure the FASTEST recovery of the system in

The correct answer is C. Take a snapshot of the system.. A snapshot is a point-in-time copy of a virtual machine (VM). If the upgrade fails, the administrator can restore the VM to the snapshot to recover the system to its previous state. This is the fastest way to recover the system in case of an unrecoverable upgrade failure.

Operations

Question

A systems administrator is performing an OS upgrade on a production VM. Which of the following actions should the administrator take before the upgrade to ensure the FASTEST recovery of the system in case the upgrade fails in an unrecoverable way?

Options

ASubmit the upgrade to the CAB.
BPerform a full backup.
CTake a snapshot of the system.
DTest the upgrade in a preproduction environment.

How the community answered

(59 responses)

A
2% (1)
B
12% (7)
C
81% (48)
D
5% (3)

Explanation

A snapshot is a point-in-time copy of a virtual machine (VM). If the upgrade fails, the administrator can restore the VM to the snapshot to recover the system to its previous state. This is the fastest way to recover the system in case of an unrecoverable upgrade failure.

Topics

#snapshots#VM recovery#OS upgrade#backup and restore

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