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  • Exam Name: VMware HCI Master Specialist
  • Last Update: May 29, 2024
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5V0-21.21 Practice Exam Questions with Answers VMware HCI Master Specialist Certification

Question # 6

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.

Install an additional 400 GB SSD and 4 x 1.8 TB SSDs per vSAN node.

B.

Update the existing Disk Group, and claim the newly installed drives for each node.

C.

Create a new Disk Group, and claim the newly installed cache and capacity SSD drives for each node.

D.

Install an additional 3 x 1.8 TB SSDs per vSAN node.

E.

Replace existing SSDs with an 800 GB SSD and 4 x 3.8 TB SSDs per vSAN node.

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Question # 7

An architect is working with an All-Flash vSAN configuration and will be using the Flash Caching Devices in vSAN.

Which requirement is specifically needed for these devices?

A.

Write endurance

B.

IOPS

C.

Read endurance

D.

Capacity

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Question # 8

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.

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Question # 9

An administrator wants to enable encryption on an existing vSAN cluster that already contains virtual machines.

Which additional step should the administrator take to ensure no data is lost during the encryption process?

A.

Select ‘Erase disks before use’ check box when enabling encryption on a vSAN cluster.

B.

Make vCenter Server trust the KMS, either by trusting the KMS or by uploading a KMS certificate.

C.

Ensure that the vSAN Encryption is enabled by default on the existing cluster to encrypt old and new data.

D.

Disable vSphere Distributed Resources Schedule (DRS) on the vSAN cluster.

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Question # 10

Upon checking the latency goal under vSAN performance diagnostics, the vSAN Administrator sees this message displayed:

The increase in latency in the vSAN stack might be beyond expected limits.

Which two root causes can be identified to help remediate the issue? (Choose two.)

A.

vSAN VMKemel portgroup is configured with the “Route based on IP hash” teaming policy

B.

vSAN encryption is enabled

C.

Large packet losses and retransmissions on the network layer

D.

Incorrect sizing of the disk groups capacity disks

E.

One or more disk groups are congested

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Question # 11

An architect is designing for a production vSAN cluster, and the customer introduced these requirements related to File Services: A minimum of 12 files shares. 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 on 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.

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Question # 12

An administrator notes that the Data-At-Rest Encryption keys have expired.

Which action is needed to resolve this situation?

A.

Add a new Standard Key Provider at the vSAN cluster level

B.

Generate new encryptions keys at the vSAN cluster level

C.

Add an additional KMS at the vCenter server level

D.

Generate new encryptions keys at the vCenter server level

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Question # 13

An architect is tasked to design a VMware Horizon Solution with vSAN. The architect needs to use a solution to host the user’s profile shares in a highly available manner, and it must be guest OS independent.

Which solution will match these requirements?

A.

Cluster out of the box

B.

Cluster in a box

C.

NFS on vSAN

D.

iSCSI on vSAN

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Question # 14

An architect is currently working with a customer to transform their existing ESXi hosts to vSAN nodes. The customer expressed the following requirements.

• First phase will transform 50% of the hosts to a hybrid vSAN nodes.

• Second phase will transform the remaining 50% hosts to an All-Flash vSAN nodes.

The following constraint exists:

• Each host has a 4-port x 1 GbE network interface.

Which two recommendations should the architect make to align with the customer's requirements? (Choose two.)

A.

Hybrid vSAN clusters can have shared 1 GbE network adapters.

B.

All-Flash vSAN clusters must have dedicated 10 GbE network adapters.

C.

Hybrid vSAN clusters must have dedicated 1 GbE network adapters.

D.

All-Flash vSAN clusters can have shared 10 GbE network adapters.

E.

Hybrid vSAN clusters must have dedicated 10 GbE network adapters.

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Question # 15

Due to an update in their security requirements, an organization is no longer compliant because the metadata traffic between hosts in their vSAN cluster is not being encrypted.

Which step must be taken by the administrator to meet the new security requirements?

A.

Enable vMotion encryption on the vSAN cluster.

B.

Enable virtual machine encryption on the vSAN cluster.

C.

Enable Data-At-Rest Encryption on the vSAN cluster.

D.

Enable Data-In-Transit Encryption on the vSAN cluster.

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Question # 16

An administrator is tasked with migrating a VMware Horizon View environment that is currently running on an NFS Datastore to VMware vSAN.

Which Horizon configuration option will not be available when configuring vSAN in Horizon View?

A.

Instant Clones

B.

Linked Clones

C.

Storage Tiers

D.

Storage Profiles

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Question # 17

An architect is designing a vSAN cluster where the hosts have more than 512 GB of memory.

Which two boot devices are recommended for these hosts? (Choose two.)

A.

USB

B.

PMEM

C.

SD

D.

Disk Device

E.

SATADOM

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Question # 18

An architect is working with vSAN and setting the fault domains to support FTT=1.

How many fault domains will be needed?

A.

2

B.

3

C.

4

D.

1

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Question # 19

* 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.

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