A vSphere administrator needs to perform a risky upgrade of a business-critical application running inside a VM. The administrator wants to be able to roll back quickly if the upgrade fails. The VM is currently running and has no existing snapshots. What is the best practice for using snapshots in this scenario?

Take multiple snapshots at different stages of the upgrade to provide more rollback points.

Take a snapshot immediately before the upgrade, and delete it as soon as the upgrade is verified successful.

Take a snapshot, leave it in place for at least a month to ensure stability, then delete it.

Do not use snapshots; instead, back up the VM using a third-party backup tool.

A vSphere administrator is troubleshooting a performance issue on a VM that has a snapshot. The VM's virtual disk is on an NFS datastore. The administrator notices that the snapshot delta file is growing rapidly. What is the most likely impact of this rapid growth on the VM's performance?

Decreased CPU performance, because the hypervisor must compress the delta file.

Increased latency for write operations, because the hypervisor must write to the delta file on the NFS datastore.

Increased memory usage, because the snapshot is cached in RAM.

No impact on performance, because NFS datastores handle snapshots more efficiently.

VMwareCertified Professional - Data Center Virtualization (VCP-DCV)

Domain 4Objective 3

Performance Impact and Proactive Management VCP-DCV Practice Questions (Page 5)

Part of the Performance-tuning, Optimization, and Upgrades domain, which makes up ~21% of our current practice bank. VMware does not publish an official question count, but from its 135-minute exam (~55–90 total, ~12–19 in this domain), expect 2–4 from this objective — we provide 22 practice questions to prepare you well beyond it. (estimate)

22questions here

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Questions 21–22

21application · medium
A vSphere administrator needs to perform a risky upgrade of a business-critical application running inside a VM. The administrator wants to be able to roll back quickly if the upgrade fails. The VM is currently running and has no existing snapshots. What is the best practice for using snapshots in this scenario?
Select an answer first
22application · medium
A vSphere administrator is troubleshooting a performance issue on a VM that has a snapshot. The VM's virtual disk is on an NFS datastore. The administrator notices that the snapshot delta file is growing rapidly. What is the most likely impact of this rapid growth on the VM's performance?
Select an answer first

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Performance Impact and Proactive Management VCP-DCV Practice Questions (Page 5)

Questions 21–22

A vSphere administrator is troubleshooting a performance issue on a VM that has a snapshot. The VM's virtual disk is on an NFS datastore. The administrator notices that the snapshot delta file is growing rapidly. What is the most likely impact of this rapid growth on the VM's performance?

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