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CV0-002 · Question #238

Before doing a change on a VM, a systems administrator wants to ensure there is an easy and fast way to rollback if needed. The change and testing should take approximately two hours. Which of the…

The correct answer is A. Create a snapshot on the hypervisor. To provide an easy and fast rollback for a two-hour change, creating a virtual machine snapshot on the hypervisor is the most efficient method.

Operations

Question

Before doing a change on a VM, a systems administrator wants to ensure there is an easy and fast way to rollback if needed. The change and testing should take approximately two hours. Which of the following is the EASIEST way to meet this requirement?

Options

  • ACreate a snapshot on the hypervisor.
  • BMake an on-demand, incremental backup to a VTL.
  • CMake an on-demand, full backup to a secondary location.
  • DCreate a snapshot on a remote storage array.

How the community answered

(44 responses)
  • A
    84% (37)
  • B
    2% (1)
  • C
    5% (2)
  • D
    9% (4)

Why each option

To provide an easy and fast rollback for a two-hour change, creating a virtual machine snapshot on the hypervisor is the most efficient method.

ACreate a snapshot on the hypervisor.Correct

Creating a snapshot on the hypervisor captures the VM's state and data at a specific point in time, allowing for rapid rollback to that exact state if the change introduces issues, making it ideal for short-term testing and quick recovery.

BMake an on-demand, incremental backup to a VTL.

An incremental backup to a VTL is primarily for long-term data protection and recovery, not for fast, short-term rollback of a VM's state.

CMake an on-demand, full backup to a secondary location.

A full backup to a secondary location is a more comprehensive disaster recovery solution, but it takes longer to create and restore compared to a hypervisor snapshot for immediate rollback.

DCreate a snapshot on a remote storage array.

While a snapshot on a remote storage array can provide rollback capabilities, creating and restoring from a hypervisor-level snapshot is generally simpler, faster, and more integrated for VM-specific changes.

Concept tested: VM snapshotting for quick rollback

Source: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vm_admin.doc/GUID-53F204F2-446D-4638-9993-4B8298715D0C.html

Topics

#VM snapshots#rollback#change management#virtualization operations

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