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  • Total Questions: 68
  • Updated on: Aug 31, 2026
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Earning the VMware HCI Master Specialist credential signals skills that employers recognize worldwide, which is exactly why the 5V0-21.21 exam is worth preparing for properly. Fast2test builds its 68 practice questions around the official outline, so your effort goes into topics that actually get tested.

VMware 5V0-21.21 Exam Overview:

Certification Vendor:VMware
Exam Name:VMware HCI Master Specialist 5V0-21.21
Exam Number:5V0-21.21
Available Languages:English
Passing Score:300 (scaled)
Related Certifications:VMware Certified Master Specialist Certifications
Real Exam Qty:Approximately 65 (varies by update)
Exam Format:Proctored Exam, Multiple Select, Multiple Choice
Exam Price:USD 250 (typical VMware Master Specialist exam pricing)
Exam Duration:130 minutes
Recommended Training:VMware HCI and vSphere Learning Path
VMware vSAN Training Courses
Exam Registration:Pearson VUE VMware Exams
VMware Certification Portal
Sample Questions:VMware 5V0-21.21 Sample Questions
Exam Way:Proctored online or authorized testing center (Pearson VUE)
Pre Condition:Recommended experience with VMware vSphere and vSAN technologies; prior VMware certification is often suggested but not strictly required.
Official Syllabus URL:https://www.vmware.com/education-services/certification.html

VMware 5V0-21.21 Exam Syllabus Topics:

SectionObjectives
VMware HCI Architecture and Design- VMware vSphere and vSAN Integration
  • 1. Storage policies and policy-based management
    • 2. Compute and storage resource management
      - Hyper-Converged Infrastructure (HCI) Concepts
      • 1. vSAN architecture overview
        • 2. Cluster design considerations
          Deployment and Configuration- Lifecycle Management
          • 1. Upgrade and patch management
            • 2. vSphere Lifecycle Manager usage
              - vSAN Cluster Setup
              • 1. Network configuration for HCI
                • 2. Initial cluster configuration
                  Operations and Troubleshooting- Performance Monitoring
                  • 1. vSAN performance metrics
                    • 2. Resource utilization analysis
                      - Issue Resolution
                      • 1. Cluster health diagnostics
                        • 2. Storage and network troubleshooting

                          5V0-21.21 Exam FAQ: What Candidates Ask About VMware HCI Master Specialist

                          The 5V0-21.21 exam, officially titled VMware HCI Master Specialist, is the VMware exam you pass to earn the VMware Certified Master Specialist certification, a credential at the Expert level. Passing it confirms the skills defined in the official exam outline, and it is associated with related credentials such as VMware Certified Master Specialist Certifications.

                          The 5V0-21.21 exam includes Approximately 65 (varies by update) questions and gives you 130 minutes to finish them. That is a tight pace per question, so get used to reading each stem once, flagging anything uncertain, and moving on rather than getting stuck. Running timed practice tests in the Fast2test desktop or online test engine is the most reliable way to build that rhythm before exam day.

                          The passing score for the 5V0-21.21 exam is 300 (scaled), and the official registration fee is USD 250 (typical VMware Master Specialist exam pricing). Keep in mind that a failed attempt means paying USD 250 (typical VMware Master Specialist exam pricing) again in full to retake it, so book your slot only when your scores on Fast2test practice tests sit consistently above the passing line.

                          VMware lists the following prerequisites or eligibility notes for the 5V0-21.21 exam: Recommended experience with VMware vSphere and vSAN technologies; prior VMware certification is often suggested but not strictly required.. Requirements can change over time, so confirm the details on the official exam page at VMware's official site before you register.

                          You can register for the 5V0-21.21 exam through the official channels below:

                          The exam is delivered in the following format: Proctored online or authorized testing center (Pearson VUE). Choose a date that leaves you enough time to work through the full 68-question practice set first.

                          VMware recommends the following training resources for 5V0-21.21 candidates:

                          Official courses build the theory, and the 68 practice questions from Fast2test help you turn that theory into exam-ready speed and accuracy.

                          Yes. Fast2test offers a free PDF demo of the 5V0-21.21 material, so you can check the question style and answer quality before purchasing. Every purchase also includes 365 days of free updates, and if your product expires you can extend the update service at a 50% discount from your member zone.

                          Your purchase is protected by a 100% Money Back Guarantee with clear conditions: if you take the corresponding 5V0-21.21 exam within 60 days of purchase and do not pass, you can apply for a full refund. The candidate name must match the payer name, and you need to submit a scanned exam enrollment slip together with the official Score Report PDF within 2 days of taking the exam; claims are processed within 7 days. Sitting the exam within 3 days of purchase, downloading without taking the exam, free materials, and expired orders are not covered. If you would rather not take a refund, you can exchange your order for two free exam products of equal value and keep the update service on your original purchase.

                          Delivery is instant: your download links are emailed within one minute of payment, and you can also download directly from the website. If nothing arrives within 2 hours, contact customer service and check your spam folder. There is no limit on how many computers you can install the material on.

                          The 5V0-21.21 exam blueprint is divided into 3 domains, starting with Deployment and Configuration; VMware HCI Architecture and Design; Operations and Troubleshooting. For the complete domain-by-domain breakdown, see the Exam Topics section above — it lists every topic the current outline covers.

                          VMware HCI Master Specialist Sample Questions:

                          Question 1

                          An administrator wants to check the performance metrics for the workloads and their virtual disks that are running on a vSAN cluster, but no statistical charts are displayed in the vSphere client.
                          Why is this behavior being seen?

                          A. vSAN network diagnostic mode is not enabled.
                          B. vSAN performance service is turned off.
                          C. vSAN proactive tests haven't been run yet.
                          D. vSAN performance verbose mode is not enabled.


                          Question 2

                          In a stretched vSAN cluster, how is Read Locality established after fail over to the secondary site?

                          A. 50% of the reads comes from vSAN hosts on the local site
                          B. 100% of the reads comes from vSAN hosts on the local site
                          C. 100% of the reads comes from vSAN hosts on the remote site
                          D. 50% of the reads comes from vSAN hosts on the remote site


                          Question 3

                          A customer has upgraded to vSAN 7, but there is still an existing legacy host which must be removed from the vSAN cluster.
                          Which three steps must an administrator take to successfully remove this host from the vSAN cluster? (Choose three.)

                          A. Remove from vSAN cluster
                          B. Place the host in maintenance mode with Ensure Accessibility
                          C. Delete the disk group(s) on the legacy host
                          D. Place the host in maintenance mode with no data migration
                          E. Place the host in maintenance mode with Full Data migration
                          F. Disconnect from vCenter Server


                          Question 4

                          Due to the success of the recently deployed developer-only private cloud solution, a company has a new requirement to at least double the usable capacity in their all-flash vSAN cluster.
                          The vSAN cluster is deployed into a co-located datacenter that is owned by a third-party hosting company. The hosting company charges a fixed monthly cost for rack space and power consumption. The service owner has been given a limited budget for additional hardware purchases, but not for on-going co-location costs.
                          The current vSAN cluster has the following configuration:
                          * 10 vSAN Nodes with 2 CPUs (20 cores), 512 GB RAM
                          * 1 Disk Group per vSAN node
                          - 1 x 400 GB
                          - 4 x 1.8 TB
                          * De-duplication and Compression is enabled.
                          * vSAN Capacity is currently:
                          - Total: 72 TB
                          - Usable: ~40 TB (FTT1/RAID1) and ~60 TB (FTT1/RAID5).
                          As a result of any action taken, the service owner would like to ensure that overall availability of the vSAN cluster is increased.
                          Which two recommendations meet the requirement to increase capacity while maintaining service availability? (Choose two.)

                          A. Replace existing SSDs with an 800 GB SSD and 4 x 3.8 TB SSDs per vSAN node.
                          B. Install an additional 3 x 1.8 TB SSDs per vSAN node.
                          C. Create a new Disk Group, and claim the newly installed cache and capacity SSD drives for each node.
                          D. Install an additional 400 GB SSD and 4 x 1.8 TB SSDs per vSAN node.
                          E. Update the existing Disk Group, and claim the newly installed drives for each node.


                          Question 5

                          A cache disk failure marked a vSAN disk group as failed, and the data is being rebuilt on other disk groups.
                          Which action should the vSAN administrator take to reduce the negative impact on the VMs?

                          A. Enabling Resync Throttling
                          B. Enabling automatic rebalance
                          C. Enabling Maintenance mode with no data evacuation
                          D. Setting the vSAN policy's IOPS limit for object value to 0 (unlimited)


                          Solutions:

                          Question 1
                          Answer: B
                          Question 2
                          Answer: C
                          Question 3
                          Answer: A,C,E
                          Question 4
                          Answer: C,D
                          Question 5
                          Answer: A

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