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1V0-21.20 · Question #113

Which two features of vSphere help address virtual machine up time challenges caused by host failures? (Choose two.)

The correct answer is C. Snapshots D. Fault Tolerance. This question asks for two vSphere features that help address virtual machine uptime challenges caused by host failures.

Explain Business Continuity Concepts

Question

Which two features of vSphere help address virtual machine up time challenges caused by host failures? (Choose two.)

Options

  • AVirtual Volumes
  • BHigh Availability
  • CSnapshots
  • DFault Tolerance

How the community answered

(21 responses)
  • A
    5% (1)
  • B
    5% (1)
  • C
    90% (19)

Why each option

This question asks for two vSphere features that help address virtual machine uptime challenges caused by host failures.

AVirtual Volumes

Virtual Volumes (VVols) primarily enhance storage management and operational efficiency, but they do not directly contribute to addressing VM uptime challenges caused by host failures.

BHigh Availability

High Availability (HA) automates the restart of virtual machines on healthy hosts after a failure, which reduces downtime, but it does not provide the immediate, zero-downtime protection offered by Fault Tolerance.

CSnapshotsCorrect

Snapshots enable point-in-time recovery, which can quickly restore a virtual machine to a known good state after a host failure and subsequent recovery attempts, thereby minimizing extended downtime by avoiding lengthy troubleshooting.

DFault ToleranceCorrect

Fault Tolerance (FT) provides continuous availability for a virtual machine by maintaining a live secondary instance on a separate host. In case of a primary host failure, the secondary instance immediately takes over, ensuring zero downtime and no data loss for the protected VM.

Concept tested: vSphere host failure recovery features

Source: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.avail.doc/GUID-88C8382F-5079-43A2-B7DA-A1176214A36B.html

Topics

#High Availability#Fault Tolerance#VM uptime#Host failures

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