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2V0-21.23 Exam Questions & Answers

VMware vSphere 8.x Professional  •  VMware

107 Questions 135 min Updated Sep 2026 99% Pass Rate
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Sample 2V0-21.23 Questions

Practice with real exam-style questions, each with the verified correct answer and explanation.

Q1 MultipleChoice

An administrator has been notified that a number of hosts are not compliant with the company policy for time synchronization.

The relevant portion of the policy states:

* All physical servers must synchronize time with an external time source that is accurate to the microsecond. Which step should the administrator take to ensure compliance with the policy?

Correct Answer: B
Explanation:

To comply with the policy of synchronizing time with an external source that is accurate to the microsecond, the administrator needs to ensure that each ESXi host is configured to use a PTP source, which provides higher accuracy than NTP.

Q2 MultipleChoice

An administrator has Windows virtual machines (VMs) and VMware Tools is installed in each VM. The administrator performs a status check of VMware Tools using vSphere Lifecycle Manager.

What is the VMware Tools status for the Windows VMs if the version of VMware Tools has a known problem and must be immediately upgraded?

Correct Answer: A
Explanation:

If VMware Tools has a known problem, the tools status will be Version Unsupported https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere-lifecycle-manager.doc/GUID-12649CBB-F69A-4199-8957-B4C0170B4E9A.html

Q3 MultipleChoice

An administrator receives reports from the application team of poor performance of a virtual ma-chine (VM). The administrator reviews the virtual machine and discovers that it has 20 snapshots that are over 12 months old.

What could the administrator do to improve the VM's performance?

Correct Answer: C
Explanation:

https://4sysops.com/archives/performance-impact-of-snapshots-in-vmware-vsphere-7/#:~:text=As%20you%20know%2C%20snapshots%20affect,time%20you%20took%20the%20snapshot.

Q4 MultipleChoice

An administrator is planning to upgrade a VMware vCenter instance to version 8. It is currently integrated with the following solutions:

* VMware Aria Automation

* VMware Cloud Director

Which tool can the administrator use to run Interoperability reports before the upgrade process?

Correct Answer: C
Explanation:

The tool that can be used to run interoperability reports before upgrading a vCenter Server instance is vCenter Server Update Planner, which allows checking compatibility with other VMware products.

Q5 MultipleChoice

Which step is completed during Stage 1 of the vCenter Server Appliance deployment?

Correct Answer: C
Explanation:

The minimum network throughput in Gb/s for vSAN using the Express Storage Architecture (ESA) is 1 Gb/s, which is the minimum requirement for vSAN network adapters. However, VMware recommends using 10 Gb/s or higher for better performance and reliability. Reference: https://docs.vmware.com/en/VMware-vSphere/8.0/com.vmware.vsphere.vsan-planning.doc/GUID-9F1D4A3B-3392-4684-812C-DB8042C1FBCD.html

https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vcenter.install.doc/GUID-1E39EF05-1DD7-4E9B-B9FE-6F373AA81862.html

https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vcenter.install.doc/GUID-1E39EF05-1DD7-4E9B-B9FE-6F373AA81862.html

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Frequently Asked Questions

The 2V0-21.23 is a professional-level certification exam from VMware that validates expertise in deploying, managing, and optimizing VMware vSphere 8.x environments. It is designed for IT professionals who have hands-on experience with vSphere and want to demonstrate advanced proficiency in virtualization technologies.

VMware recommends that candidates have at least 6-12 months of hands-on experience with vSphere 7.x or 8.x in a production environment. There are no formal prerequisites, but it is highly recommended to hold the VMware Certified Associate (VCA) or VMware Certified Technical Associate (VCTA) level certification before attempting this professional-level exam.

The exam is typically 105 minutes long with approximately 70-80 questions in multiple-choice and drag-and-drop formats. The passing score is usually around 300 out of 500 points, though the exact passing percentage may vary; VMware does not disclose the exact threshold publicly.

The exam covers vSphere 8.x core components including vCenter Server, ESXi hosts, virtual machines, storage, networking, security, automation, and management tasks. It also includes topics on performance optimization, troubleshooting, and using vSphere APIs and command-line tools.

The exam typically costs between $200-250 USD depending on your location and testing center, though prices may vary. VMware certifications are generally valid for three years from the date of passing, after which you would need to recertify through retaking the exam or taking an upgrade exam.
Exam Details
  • Exam Code2V0-21.23
  • VendorVMware
  • Total Questions107
  • Duration135 min
  • LanguageEnglish
  • Last UpdatedSep 4, 2026
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