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1V0-21.20 · Question #17

Refer to the exhibit. An administrator has applied a Service 2 patch after taking a snapshot. The administrator then realizes that a Service 1.5 patch should have been applied before the Service 2 pat

The correct answer is D. Revert to Service 1, take a snapshot, and apply Service 1.5 patch.. To correct the patch order, the administrator must revert the virtual machine to its state before Service 2 was applied, effectively undoing the incorrect patch. After reverting, a new snapshot should be taken to preserve this corrected base state, followed by applying the Servic

Explain Virtual Machine Concepts

Question

Refer to the exhibit. An administrator has applied a Service 2 patch after taking a snapshot. The administrator then realizes that a Service 1.5 patch should have been applied before the Service 2 patch. Which series of actions should be taken to manage this issue?

Exhibit

1V0-21.20 question #17 exhibit

Options

  • ADelete all the snapshots, take a snapshot, and apply Service 1.5 patch.
  • BRemain at Service 2, take a snapshot, and apply Service 1.5 patch.
  • CDelete Service 1, take a snapshot, and apply Service 1.5 patch.
  • DRevert to Service 1, take a snapshot, and apply Service 1.5 patch.

How the community answered

(15 responses)
  • A
    13% (2)
  • B
    7% (1)
  • D
    80% (12)

Why each option

To correct the patch order, the administrator must revert the virtual machine to its state before Service 2 was applied, effectively undoing the incorrect patch. After reverting, a new snapshot should be taken to preserve this corrected base state, followed by applying the Service 1.5 patch.

ADelete all the snapshots, take a snapshot, and apply Service 1.5 patch.

Deleting all snapshots would remove the ability to revert to the state before Service 2, making it impossible to easily correct the patching order as desired.

BRemain at Service 2, take a snapshot, and apply Service 1.5 patch.

Applying Service 1.5 after Service 2 would not fix the problem; the patches would still be in the wrong order, potentially causing compatibility or functional issues.

CDelete Service 1, take a snapshot, and apply Service 1.5 patch.

The action 'Delete Service 1' is not a standard vSphere operation for rolling back patches; reverting to a specific snapshot is the correct method to go back to a previous state.

DRevert to Service 1, take a snapshot, and apply Service 1.5 patch.Correct

Given that Service 2 was applied after a snapshot and Service 1.5 should have preceded it, the correct action is to revert the virtual machine to the snapshot taken before Service 2. This effectively rolls back the VM to the 'Service 1' state. After reverting, taking a new snapshot establishes a recovery point at the desired pre-Service 1.5 state, allowing Service 1.5 to be applied correctly in sequence.

Concept tested: vSphere snapshot management and rollback

Source: https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-vm-administration/GUID-3D06D5E9-9685-48DC-9114-6F91C1E6F370.html

Topics

#VM snapshots#Patching rollback#Snapshot reversion#VM recovery

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