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CV0-003 · Question #341

A technician logs into a virtual machine and makes several changes, including IP address configuration and printer driver installation. Which of the following should the technician have performed…

The correct answer is C. Take a snapshot of the virtual machine. Taking a VM snapshot before making configuration changes provides a quick restore point if the changes cause problems.

Operations

Question

A technician logs into a virtual machine and makes several changes, including IP address configuration and printer driver installation. Which of the following should the technician have performed BEFORE making these changes?

Options

  • AExport each complete virtual machine to a backup image server.
  • BSave each virtual machine as a complete file.
  • CTake a snapshot of the virtual machine.
  • DComplete a full system image backup for each virtual machine.

How the community answered

(49 responses)
  • A
    4% (2)
  • B
    2% (1)
  • C
    92% (45)
  • D
    2% (1)

Why each option

Taking a VM snapshot before making configuration changes provides a quick restore point if the changes cause problems.

AExport each complete virtual machine to a backup image server.

Exporting a complete VM to a backup image server is a time-intensive operation suited for long-term archival backup, not a quick pre-change safeguard taken immediately before making live configuration changes.

BSave each virtual machine as a complete file.

Saving a VM as a complete file is essentially an export or clone operation, which is heavyweight and slow compared to a snapshot and is not the standard practice before routine configuration changes.

CTake a snapshot of the virtual machine.Correct

A snapshot captures the exact state of a virtual machine at a specific point in time, including memory, disk, and settings. If the IP configuration or driver installation causes issues, the technician can instantly revert to the pre-change state. Snapshots are the standard pre-change safety measure in virtualized environments because they are fast to create and fast to restore.

DComplete a full system image backup for each virtual machine.

A full system image backup is a comprehensive disaster recovery measure that takes significant time and resources, making it impractical as a routine step before minor configuration changes on a virtual machine.

Concept tested: Virtual machine snapshot as pre-change rollback point

Source: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vm_admin.doc/GUID-CA948C69-7F58-4519-AEB1-739545EA94E5.html

Topics

#VM snapshots#virtual machine management#change management#backup best practices

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