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Certification vendors revise their outlines, and stale material quietly hurts candidates. The 5V0-21.20 practice questions at Fast2test are reviewed on a continuous basis, and your purchase of the VMware HCI Master Specialist package includes 365 days of free updates, so your study set stays current through 2026 and beyond.

VMware 5V0-21.20 Exam Overview:

Certification Vendor:VMware
Exam Name:VMware HCI Master Specialist
Exam Number:5V0-21.20
Passing Score:300 (scaled score)
Real Exam Qty:50–77
Exam Format:Multiple Choice, Multiple Response, Scenario-Based
Related Certifications:VMware Certified Specialist – vSAN
VMware Certified Professional – Data Center Virtualization (VCP-DCV)
Available Languages:English
Exam Duration:100 minutes
Exam Price:USD 250
Sample Questions:VMware 5V0-21.20 Sample Questions
Exam Way:Proctored exam via Pearson VUE or VMware online delivery.
Pre Condition:Recommended: VCP-DCV certification and vSAN Specialist badge; experience with VMware vSAN design and deployment.
Official Syllabus URL:https://www.vmware.com/learning/certification.html

VMware 5V0-21.20 Exam Syllabus Topics:

SectionObjectives
vSAN and HCI Architecture- Core architecture and components
  • 1. vSAN cluster design
  • 2. Network and storage considerations
Planning and Design- HCI design principles
  • 1. Sizing and performance planning
  • 2. Fault domains and capacity planning
Maintenance and Troubleshooting- Operational tasks
  • 1. Monitoring health and performance
  • 2. Troubleshooting common issues
Deployment and Configuration- Installation and setup
  • 1. Initial cluster configuration
  • 2. VMkernel and network configuration
Products and Solutions Integration- vSphere and vSAN integration
  • 1. VMLifecycle management and monitoring
  • 2. vSphere Replication and interoperability

VMware 5V0-21.20 Exam — Your Questions, Answered

The 5V0-21.20 exam, officially titled VMware HCI Master Specialist, is the VMware exam you pass to earn the Master Specialist HCI 2020 certification, a credential at the Specialist level. Passing it confirms the skills defined in the official exam outline, and it is associated with related credentials such as VMware Certified Specialist – vSAN, VMware Certified Professional – Data Center Virtualization (VCP-DCV).

The 5V0-21.20 exam includes 50–77 questions and gives you 100 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 5V0-21.20 exam is 300 (scaled score), and the official registration fee is USD 250. Keep in mind that a failed attempt means paying USD 250 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 5V0-21.20 exam: Recommended: VCP-DCV certification and vSAN Specialist badge; experience with VMware vSAN design and deployment.. Requirements can change over time, so confirm the details on the official exam page at VMware's official site before you register.

Yes. Fast2test offers a free PDF demo of the 5V0-21.20 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 5V0-21.20 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 5V0-21.20 exam blueprint is divided into 5 domains, starting with Deployment and Configuration; Planning and Design; vSAN and HCI Architecture. 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

A vSAN all-flash environment with these host specifications has reported high network latency, write latency, and faces degraded performance:
* One 1Gbps (vSAN, vMotion Traffic)
* One 1Gbps (Management, Fault Tolerance traffic)
Based on the specifications of each host, what is recommended to resolve the issue?

A. change stripe width to 12
B. change MTU to 9000
C. collapse all traffic into one 1Gbps NIC
D. collapse all traffic shared under two 10Gbps NICs


Question 2

Refer to the exhibit:

The vSAN Health service is reporting VSAN Cluster Partition' warning. The partition list shows all hosts from rack 1 in a single partition and all hosts from rack 2 in another partition.
Which hardware component requires investigation to resolve the cluster partition?

A. core switch
B. ToR switches
C. vSAN Master node
D. NICs on each host in Rack 2


Question 3

Which storage policy can be assigned to virtual machines In a 5-node, all flash vSAN cluster, to provide the highest level of redundancy?

A. 2 failures - RAID-1 (Mirroring)
B. 1 failure - RAID-5 (Erasure Coding)
C. 2 failures - RAID-6 (Erasure Coding)
D. 3 failures - RAID-1 (Mirroring)


Question 4

Which should be verified before enabling de duplication and compression?

A. Autoclaim mode is enabled.
B. All hosts are in maintenance mode.
C. Adequate space is available.
D. Ensure disk groups are balanced.


Question 5

Which two statements are true about enabling deduplication and compression on an All-Flash vSAN cluster with data? (Choose two.)

A. This can be enabled through storage policies and does not require any data migration.
B. On-disk format version 3.0 or later is required to support deduplication and compression.
C. This requires data evacuation and disk format upgrade of all the disk groups.
D. Deduplication and Compression cannot be enabled on an existing vSAN datastore with data.
E. Move one host at a time to maintenance mode and enable deduplication and compression.


Solutions:

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

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