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5V0-21.21Q&As – VMware HCI Master Specialist Dumps
QUESTION 1
An architect is designing for a production vSAN cluster, and the customer introduced these requirements
related to File Services: A minimum of 12 files were shared. 30TB NFS capacity to mount workload VMs.
What should be the architect\\’s recommendations?
A. Point out the risks regarding putting the hosts in maintenance mode in terms of FSVM.
B. Confirm all of the requirements and move forward with the physical design.
C. Raise concerns regarding support when running VMs on an NFS share as risk.
D. Highlight the required number of nodes required for the vSAN cluster as a constraint.
Correct Answer: D
QUESTION 2
An 8-Node vSAN Stretched Cluster (4+4+1) with a single disk group has a policy with PFTT=1 (mirrored
across sites) and SFTT=1/FTM Mirroring (Local Protection) configured.
The administrator has been alerted that there is a problem with the cluster. The following has been
observed:
The vSAN Witness Host is offline.
Two disk failures on two hosts have occurred in the preferred site.
This has resulted in a critical production virtual machine\\’s vodka becoming inaccessible.
Which step needs to be performed by the administrator to resolve the issue?
A. Replace all failed disks on the preferred site.
B. Replace the vSAN Witness Host
C. Replace access to the existing vSAN Witness Host
D. Replace only one failed disk on the preferred site.
Correct Answer: C
QUESTION 3
Which statement accurately describes the result when proper VM Storage Policy Affinity Rules on a stretched vSAN
cluster is set?
A. When a site is disconnected, the VM will lose access to its VMDK.
B. When a site is disconnected, the VM will continue to have access to its VMDK.
C. Bandwidth is unnecessarily sent across the inter-site link.
D. Proper policies result in higher inter-site bandwidth utilization.
Correct Answer: A
QUESTION 4
A company hosts a vSAN 7 stretched cluster for all development workloads. The original sizing of a maximum of 250
concurrent workloads in the vSAN cluster are no longer sufficient and need to increase to at least 500 concurrent
workloads within the next six months.
To meet this demand, the original 8-node (4-4-1) cluster has recently been expanded to 16 nodes (8-8-1).
Which three additional steps should the administrator take to support the current growth plans while minimizing the
number of resources required at the witness site? (Choose three.)
A. Add the new vSAN witness appliance to the vCenter Server.
B. Deploy a new large vSAN witness appliance at the witness site.
C. Configure the vSAN stretched cluster to use the new vSAN witness.
D. Deploy a new extra-large vSAN witness appliance at the witness site.
E. Upgrade the vSAN stretched cluster to vSAN 7.0 U1.
F. Configure the new vSAN witness as a shared witness appliance.
Correct Answer: BCF
QUESTION 5
A 30-minute power maintenance window has been approved on Sunday. Due to a delay, the maintenance took 20
minutes longer to finish.
During this time, the vSAN administrator noticed that one of the nodes of the cluster was affected by a power shortage, as it was connected to an affected power source. The default vSAN storage policy has been applied.
What will be the status of the vSAN objects on the affected host immediately after it is recovered?
A. The cluster will be partitioned and the vSAN host will need to be rejoined.
B. A rebuild of the affected objects will occur.
C. All objects will remain accessible.
D. All objects on the affected host will be lost.
Correct Answer: B
QUESTION 6
During a planning session for new vSAN clusters in multiple data centers, the customer relayed the following
information:
Highest possible mitigation during a host failure in terms of capacity. A constraint in this year\’s IT budget.
What should the architect recommend?
A. Enable operations reserve. A minimum cluster of 3 vSAN nodes.
B. Enable host build reserve. A minimum cluster of 4 vSAN nodes.
C. Enable performance services. A minimum cluster of 6 vSAN nodes.
D. Enable IOInsight Metrics. A minimum cluster of 2 vSAN ROBO nodes.
Correct Answer: B
QUESTION 7
An administrator is tasked with preparing for a Cross vCenter migration in a stretched vSAN cluster where the virtual
machines migration will be orchestrated via VMware Site Recovery Manager.
Which action should the administrator take so the migration is successful?
A. Disable vSAN Deduplication and Compression
B. Reconfigure vCenter HA Admission control
C. Enable vCenter Single Sign-On Enhanced Linked Mode
D. Make sure that Witness traffic is on the management NIC.
Correct Answer: C
QUESTION 8
An administrator is tasked with setting up Kerberos authentication only for the vSAN File services.
Which version of Kerberos must be selected if the NFS version is v4.1?
A. krb5i
B. krb4
C. krb5
D. krb5p
Correct Answer: A
Reference: https://core.vmware.com/resource/best-practices-running-nfs-vmware-vsphere
QUESTION 9
An administrator is planning to change a vSAN Storage Policy to apply a Failures To Tolerate (FTT) of 2, using RAID-6.
What is the minimum number of vSAN nodes required?
A. 6
B. 4
C. 5
D. 8
Correct Answer: A
QUESTION 10
An architect needs to automate an infrastructure that supports VMware Horizon as well as VMware Tanzu. Which
solution mandates the use of VMware vSAN?
A. VMware Cloud Foundation
B. VMware Horizon
C. VMware Tanzu
D. VMware vRealize Automation
Correct Answer: D
Reference: https://www.vmware.com/products/vrealize-automation.html
QUESTION 11
An architect collected the below technical requirements from the customer during a vSAN cluster design
workshop:
Maximize the vSAN datastore usable capacity.
Deduplication and compression are required to help utilize available capacity efficiency.
Ensure the highest level of resiliency wherever possible.
Which disk group configuration should the architect include in the design?
A. One disk group per host, with one cache tier flash disk and four capacity tier, flash disks.
B. Two disk groups per host, each with one cache tier flash disk and four capacity tier flash disks.
C. Two disk groups per host, each with one cache tier flash disk and six capacity tier flash disks.
D. Two disk groups per host, each with one cache tier flash disk and six capacity tier magnetic disks.
Correct Answer: D
QUESTION 12
A company has engaged a consultant to upgrade an existing vSAN cluster to vSAN 7.0 U1.
During the discovery phase, the consultant found the following information about the existing environment:
The VMware vCenter Server has recently been upgraded from VMware vSphere 6.7 U3 to version 7.0 U1.
The vSAN Cluster was recently expanded with identical hardware specifications but from a different hardware vendor.
The hardware for each vSAN node is listed on the vSAN Compatibility Guide (VCG) for vSAN 7.
The vSAN Cluster has the following configuration:
-vSAN version: 6.6.1
-Number of vSAN nodes: 10
-Encryption: enabled
-Deduplication and Compression: enabled
-vSAN Capacity Utilization: 60%
Each vSAN node has the following configuration:
-VMware vSphere ESXi version: 6.5 Update 3
-CPU: 2 processors, 20 cores
-RAM: 768GB RAM.
-Disk: 2 Cache SSDs and 6 Capacity SSDs
-Network: 4 x 10GbE
Which three recommendations should the consultant make to ensure all data remains protected in the event of a vSAN
failure? (Choose three.)
A. The Full data migration maintenance mode option must be chosen to protect the data during the upgrade.
B. The Ensure accessibility, migration maintenance mode option must be chosen to protect the data during the
upgrade.
C. The upgrade process should be completed using host upgrade baselines in VMware vSphere Lifecycle Manager
(vLCM).
D. The vSAN nodes should be upgraded to vSphere ESXi 7.0 U1.
E. The upgrade process should be completed using images in VMware vSphere Lifecycle Manager (vLCM).
F. The vSAN nodes should be upgraded to vSphere ESXi 6.7 U3.
Correct Answer: BDE
QUESTION 13
An administrator managing a vSAN cluster of six nodes with policy FTT-2/RAID-6 decided to put one of the nodes in
maintenance mode using the “Full-data migration” option.
What will happen after this action is taken?
A. The host will enter in maintenance mode and the data will remain accessible until the host exits maintenance mode.
B. The system will prompt to add an additional host to the cluster in order to preserve the policy compliance.
C. The host will enter in maintenance mode and only data with no redundancy will remain accessible.
D. The host will enter into maintenance mode if both components of a certain object are residing on that host, then one of the components will be moved to another available host.
Correct Answer: A
Reference: https://blogs.vmware.com/virtualblocks/2020/02/06/what-happens-vsan-host-in-maintenancemode/
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