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How to Prepare For 5V0-21.20: VMware HCI Master Specialist Exam
Preparation Guide for 5V0-21.20: VMware HCI Master Specialist Exam
Introduction
5V0-21.20: VMware HCI Master Specialist Exam is designed for professional who are having has 6-12 months hands-on experience configuring, managing, and designing vSphere and vSAN. There are no specific prerequisites that you must have for VMware 5V0-21.20 Course, but it is recommended that you must be familiar with the concepts and the technologies related to the deployment and administration of VMs. As an HTML5 VMware 5V0-21.20 administrator, you oversee important Application Development s that spans multiple platforms and environments. You are a strong team player who thrives in a fast-paced environment. You Manage the Application Life Cycle, Build the User Interface by Using HTML5, Format the User Interface by Using CSS, Code by Using JavaScript.
This exam checks competency level on topics Core Application Development Concepts, Creating Application Development Objects, and Administering an Application Development.
Certification is evidence of your skills, expertise in those areas in which you like to work. Many vendors in the market are providing these certifications. If a candidate wants to work on 5V0-21.20: VMware HCI Master Specialist and prove his knowledge, Certification is offered by VMware. This 5V0-21.20: VMware HCI Master Specialist Individuals Qualification Certification helps a candidate to validates his skills in 5V0-21.20 exam test technology.
In this guide, we will cover the 5V0-21.20 dumps and all the aspects of the 5V0-21.20 practice test.
NEW QUESTION 24
Refer to the exhibit.
An administrator is managing a 4-node, hybrid vSAN cluster. One of the hosts in the cluster went offline.
Referencing the information displayed in the section of the vSAN UI, what is the current state of this cluster?
- A. Metadata resynchronization is scheduled to occur every 60 minutes.
- B. Objects will be resynchronized when the Object Repair Timer expires.
- C. Resync Throttling has caused data resynchronization scheduling.
- D. Offline host reconnected to the cluster and all objects are synchronized.
Answer: A
NEW QUESTION 25
A vSAN administrator is changing the number of stripes in the vSAN policy from 1 to 2 on a 3-node vSAN Cluster. What is a possible impact of this policy change?
- A. Stripes will be placed on separate media, but does not guarantee separate hosts or disk groups.
- B. The amount of raw capacity required to comply with this policy will decrease by half.
- C. The amount of raw capacity required to comply with this policy will double.
- D. Policy cannot be applied as the cluster does not meet the minimum number of fault domains.
Answer: B
NEW QUESTION 26
An architect has been asked to plan the Impact of a storage policy change to one of the production All-Flash based vSAN datastores. The change will reduce the failures to tolerate value from 2 to 1 for objects with a RAID-1 (Mirroring) layout in the existing policy. This change will be applied to multiple VMs.
Which statement is correct in this scenario?
- A. There will be no objects rebuilt that impact performance.
- B. FTT-2 requires another change to apply a RAID-6 configuration.
- C. The policy will need to be recreated and applied with an additional tag.
- D. There will be an object rebuild impact on performance.
Answer: A
NEW QUESTION 27
Which two statements are true about enabling deduplication and compression on an All-Flash vSAN cluster with data? (Choose two.)
- A. Move one host at a time to maintenance mode and enable deduplication and compression.
- B. On-disk format version 3.0 or later is required to support deduplication and compression.
- C. This can be enabled through storage policies and does not require any data migration.
- D. This requires data evacuation and disk format upgrade of all the disk groups.
- E. Deduplication and Compression cannot be enabled on an existing vSAN datastore with data.
Answer: B,D
Explanation:
Explanation/Reference: https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.virtualsan.doc/GUID- BD30E413-F870-4C25-9507-123F59D0A4B8.html
NEW QUESTION 28
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. NICs on each host in Rack 2
- D. vSAN Master node
Answer: C
NEW QUESTION 29
An administrator observes a significant amount of vSAN backend traffic at the cluster level. What are two possible causes? (Choose two.)
- A. The host entered maintenance mode with no data migration.
- B. vSAN Stretched Cluster storage policy was assigned to virtual machines in a vSAN standard cluster,
- C. vSAN is performing data resynchronizations after a host failure.
- D. The migration of virtual machines to the vSAN datastore using Storage vMotion is occurring.
- E. The host is rebuilding vSAN logs in the cache tier after a reboot.
Answer: C,D
NEW QUESTION 30
An architect has been asked to plan the Impact of a storage policy change to one of the production All-Flash based vSAN datastores. The change will reduce the failures to tolerate value from 2 to 1 for objects with a RAID-1 (Mirroring) layout in the existing policy. This change will be applied to multiple VMs.
Which statement is correct in this scenario?
- A. FTT-2 requires another change to apply a RAID-6 configuration.
- B. The policy will need to be recreated and applied with an additional tag.
- C. There will be no objects rebuilt that impact performance.
- D. There will be an object rebuild impact on performance.
Answer: D
NEW QUESTION 31
Which two statements are true about a vSAN Cluster when the vCenter Server managing it is offline? (Choose two.)
- A. Manage and view vSAN health information using RVC commands.
- B. Use a Web browser to monitor vSAN through the vSphere Host Client.
- C. vSAN continues to operate, but vSAN performance metrics will be lost.
- D. vSAN continues to operate and all VMs inherit the default vSAN storage policy.
- E. vSAN health information is available through esxcli commands.
Answer: B,E
NEW QUESTION 32
Where would an administrator enable deduplication and compression in a vSAN environment?
- A. at the object level using storage policies
- B. at the disk group level
- C. at the host level using ESXCLI commands
- D. at the cluster level under vSAN services
Answer: A
NEW QUESTION 33
Which Kubernetes component must be configured to allow for dynamic provisioning of container volumes on vSAN?
- A. vSphere Cloud Storage Plugin
- B. Cinder
- C. vSphere Container Storage Interface driver
- D. glusterfs
Answer: B
NEW QUESTION 34
A failed storage controller has two vSAN disk groups attached. The components contained on the dnves in those disk groups are marked Degraded. vSAN reports that some objects do not comply with their assigned storage policy.
How is the compliance issue resolved?
- A. Rebuilding of the degraded components starts immediately.
- B. Storage policies must be reapplied to all affected objects.
- C. Initiate a proactive rebalance to force component repairs.
- D. Degraded components are repaired after CLOM Repair Delay Timer expires.
Answer: A
NEW QUESTION 35
A vSAN administrator is working on a 4 host homogenous vSAN Cluster that has 2 disk groups per host. One of the hosts needs to be permanently removed and repurposed for some other use.
These are the out of order steps which need to be completed:
1. Delete the disk group(s) that reside on the host you want to decommission.
2. Wait for resync traffic to complete and the host to enter maintenance mode.
3. Ensure there is sufficient capacity in the vSAN disk groups to decommission a node.
4. Put the host into maintenance mode with full data migration selected.
5. Move the ESXi host out of the cluster.
What is the correct order?
- A. 4, 3, 2, 1, 5
- B. 3, 4, 2, 1, 5
- C. 3, 1, 4, 2, 5
- D. 4, 3, 2, 5, 1
Answer: B
NEW QUESTION 36
Reference the exhibit.
A university campus has a site topology illustrated in the exhibit. Adjacent connected buildings are connected with a single 40gb layer 3 network with a RTT of 0.6ms as depicted by each line. An architect wants to configure a fault domain in each building.
What would the architect need change in order to implement a fully supported vSAN Cluster?
- A. Decrease the existing RTT between the existing links by 0.1ms or more.
- B. Enable IPv6 networks across all buildings for vSAN connectivity.
- C. Add an additional link to the existing adjacent links to make it redundant.
- D. Enable a single Layer 2 network across all buildings for vSAN connectivity.
Answer: C
NEW QUESTION 37
A customer has lost connectivity to one of their sites In a vSAN Stretched Cluster.
When connectivity is restored, what DRS setting will ensure VMs are not migrated back before resyncs are complete?
- A. DRS turned off
- B. DRS configured in Fully Automated mode
- C. DRS configured in Manual Mode
- D. DRS configured in Partially Automated mode
Answer: C
NEW QUESTION 38
Which two statements regarding networking are true for a vSAN Stretched Cluster? (Choose two.)
- A. PIM is required for stretched vSAN clusters.
- B. The vSAN data network must communicate with the vSAN witness host.
- C. A Stretched Layer 2 network is required at the vSAN data sites and at the witness site.
- D. A Stretched Cluster can use Layer 2 or Layer 3 communication for the vSAN network.
- E. A 5ms RTT or less is required between the data sites.
Answer: D,E
NEW QUESTION 39
An administrator wants to orchestrate the update of the controller driver and firmware in a vSAN cluster.
Which is a required step when using VMware vSphere Update Manager and vSAN Health Service to perform the updates?
- A. Upload an OEM provided vSphere ISO.
- B. Manually create a vSAN system baseline.
- C. Ensure all controllers are in pass-through mode.
- D. Install a vendor tool for the controller.
Answer: C
NEW QUESTION 40
During planned maintenance of a four-node vSAN cluster, an outsourced IT contractor accidentally removed a
2.5" SSD cache disk from one of the vSAN nodes. The storage policy has been configured with FTT=1 RAID
1, and the disk management UI marked the disk group as
Which remediation steps should the administrator select to ensure VMs become compliant with the storage policy as soon as possible?
- A. enter host in maintenance > remove from disk group > shutdown host > replace disk > power on host
- B. replace the SSD cache disk > rescan > add disk back in disk group
- C. remove disk group > enter host in maintenance > fully evacuate all data > exit maintenance
- D. vSAN Health Check > retest > object health > repair objects immediately
Answer: B
NEW QUESTION 41
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