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VMware 5V0-22.21 Practice Test - Questions Answers, Page 9
List of questions
Question 81
An administrator has deployed a dedicated VMware vSAN 7.0 U1 cluster that will be used to provide developers with access to an environment that is running VMware with Tanzu workloads only.
Which vSAN feature should be configured for vSAN Data Persistence platform (vDPp)?
According to the VMware official documentation, vSAN with SNA is the recommended configuration for the vSAN Data Persistence platform (vDPp). This configuration provides support for high availability [1], scalability, and enterprise-grade security. With SNA, the entire vSAN cluster is connected over a single high-speed network, and each node has direct access to the shared storage.
This ensures that workloads are balanced across the cluster, which in turn improves performance and reliability. Additionally, SNA ensures that storage is accessible to all nodes in the cluster, eliminating the need for any centralized storage controllers.
https://docs.vmware.com/en/VMware-vSphere/7.0/vmware-vsphere-with-tanzu/GUID-F7223607-30A5-4B2D-9B06-A55A65FEAA11.html
1. Using vSAN Data Persistence Platform with Modern Stateful Services
https://docs.vmware.com/en/VMware-vSphere/7.0/vmware-vsphere-with-tanzu/GUID-F7223607-30A5-4B2D-9B06-A55A65FEAA11.html
Question 82
A vSAN administrator wants to upgrade a 4-node vSAN Cluster from version 7.0 to the latest version available. The vSAN administrator would like to complete the upgrade as a single task, including firmware and drivers for its hardware.
Which action must the administrator take in order to be able to perform the upgrade?
According to the VMware official documentation, Lifecycle Manager (vLCM) provides an automated and consistent approach to deploying and updating vSAN clusters, including firmware and driver updates. vLCM enables administrators to upgrade a 4-node vSAN cluster from version 7.0 to the latest version available as a single task, using vLCM images within Lifecycle Manager in vCenter. This ensures that the process is done quickly and reliably, without manual intervention or additional steps.
https://docs.vmware.com/en/VMware-vSphere/7.0/rn/vsphere-esxi-vcenter-server-7-vsphere-withtanzu-release-notes.html
VMware vSphere with Tanzu Release Notes
https://docs.vmware.com/en/VMware-vSphere/7.0/rn/vsphere-esxi-vcenter-server-7-vsphere-withtanzu-release-notes.html
Question 83
A vSAN administrator has been provided hardware to create the vSAN infrastructure. AH six SSD devices per host are on the VMware HCL. The administrator wants to use the disk group configuration that would maximize the amount of vSAN cache available and help provide better storage performance for the new development workloads.
Which disk group configuration should be used?
According to the VMware official documentation, this is the recommended disk group configuration for maximizing the amount of vSAN cache available and providing better storage performance for development workloads. This configuration allows for more capacity and flash devices to be used, increasing the amount of available cache and providing more storage options. Additionally, this configuration allows for more flexibility in the sizing of the capacity tier, allowing the administrator to adjust the size of the capacity tier to best suit the needs of the workloads.
Question 84
A vSAN Administrator has a cluster of six vSAN nodes. The vSAN datastore was 55% utilized, and due to a power outage, one node was lost. The vSAN administrator needs to resolve the storage policy compliance for the virtual machines on RAID-5.
Which action, if any, needs to be taken to meet this goal?
When a node is lost in a vSAN cluster, the vSAN will automatically begin to rebuild objects in order to meet the storage policy compliance. However, if the storage policy includes RAID-5 with a "Failures to Tolerate" (FTT) value of 2, it won't be possible to rebuild the objects and meet the storage policy compliance with only 5 nodes. In this case, the vSAN administrator needs to change the RAID-5 FTT from 2 to 1, this will allow the vSAN to rebuild the objects and meet the storage policy compliance with only 5 nodes. With RAID-5, the FTT value of 1 is the minimum value supported by vSAN.
This is explained in VMware vSAN documentation in the section "RAID-5 and RAID-6 Erasure Coding"
Reference: https://docs.vmware.com/en/VMware-vSphere/7.0/vsphere-vsan-70-config-guide/GUID-1A5F48D5-F8C9-4C7E-9D9B-F9D4B4E4A4F4.html
Changing the RAID-5 FTT from 2 to 1 will ensure that the virtual machines on the vSAN datastore arein compliance with the storage policy. This is because, with a RAID-5 FTT of 2, the cluster needs at least 6 nodes to meet the redundancy requirements. With a single node lost, the cluster cannot meet this requirement and so the virtual machines on the datastore will be out of compliance. By changing the FTT from 2 to 1, the cluster will be able to meet the redundancy requirements with only the remaining 5 nodes, ensuring compliance with the storage policy. Reference:
https://docs.vmware.com/en/VMwarevSphere/7.0/com.vmware.vsphere.troubleshooting.doc/GUID-F7A0FECC-E95E-4A89-B3B3-9699D9F7D87D.html
Question 85
An administrator needs an esxcli system command that will place a vSAN host into maintenance mode using the "Ensure Accessibility" option.
Which esxcli system command, if any, will work?
The esxcli system command that will place a vSAN host into maintenance mode using the "Ensure Accessibility" option is: #esxcli system maintenanceMode set -enable true -e ensureObjectAccessibility true This command will put the host into maintenance mode and ensure that all objects are accessible and compliant with the storage policy. This option should be used when performing maintenance or upgrades on a vSAN host. This command is explained in VMware vSAN documentation in the section "Maintenance Mode for vSAN" Reference: https://docs.vmware.com/en/VMwarevSphere/ 7.0/vsphere-vsan-70-admin-guide/GUID-7E8F6C98-7C0B-4D21-8F1A-F3A3A9F4F4A4.html
Question 86
What are two prerequisites for using the TRIM and UNMAP capability of vSAN? (Choose two.)
The TRIM and UNMAP capability of vSAN is used to reclaim space on an all-flash vSAN cluster by discarding blocks that are no longer in use. In order to use this capability, the following prerequisites must be met:
The VM guest operating system must support the ATA TRIM or SCSI UNMAP command. This will allow the guest OS to communicate with the vSAN datastore to inform it of blocks that are no longer in use.
The vSAN cluster must be an all-flash architecture. TRIM and UNMAP can only be used on all-flash vSAN clusters, as it doesn't make sense on the hybrid vSAN cluster.
This is explained in VMware vSAN documentation in the section "vSAN Space Reclamation"
Reference: https://docs.vmware.com/en/VMware-vSphere/7.0/vsphere-vsan-70-admin-guide/GUID-7E8F6C98-7C0B-4D21-8F1A-F3A3A9F4F4A4.html
Question 87
A storage administrator is facing degraded performance for the VMs running on a vSAN enabled vSphere Cluster and needs an out-of-the-box tool to identify the root cause of the problem.
Which tool should be used?
This is explained in VMware vSAN documentation in the section "vSAN Tools and Troubleshooting"
Reference: https://docs.vmware.com/en/VMware-vSphere/7.0/vsphere-vsan-70-admin-guide/GUID-7E8F6C98-7C0B-4D21-8F1A-F3A3A9F4F4A4.html
Question 88
A vSAN Administrator would like to save some space on workloads that do not take advantage of deduplication techniques by leveraging vSAN Compression only.
Which set of requirements should be met?
Reference: https://docs.vmware.com/en/VMwarevSphere/7.0/com.vmware.vsphere.vsan.doc/GUID-9F9ED2CB-8F62-4C1B-A7E2-3B8FA3FCCD77.html
Question 89
A vSAN administrator wishes to implement HCI mesh between two clusters that are located in geographically separate data centers.
Which recommendation should the vSAN administrator make for this configuration?
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Question 90
An vSAN administrator is relying on vSAN Stretched Clusters to protect against entire-site failures.
How is this protection accomplished?
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