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VMware 5V0-21.21 VMware HCI Master Specialist Exam Practice Test

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Total 66 questions

VMware HCI Master Specialist Questions and Answers

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Question 1

An administrator is troubleshooting vSAN performance issues, and the performance diagnostics reports:

"There are errors seen in one or more physical NICs on one or more hosts."

Which two problems must be resolved to fix this issue? (Choose two.)

Options:

A.

A 25 Gb/s NIC needs to be installed.

B.

There are incompatible firmware and driver versions.

C.

There is an incorrectly set MTU.

D.

The vSAN version needs to be upgraded to 7.0.

E.

A firewall is blocking ports.

Question 2

An administrator would like to upgrade ten identically configured 2-node vSAN clusters from vSAN 6.7 U3 to vSAN 7.0 U1. Currently, each 2-node vSAN cluster is using a dedicated vSAN witness host appliance. As a result of the upgrade, the administrator would like to leverage the vSAN shared witness feature to reduce the resources being consumed.

In preparation for the first vSAN cluster upgrade, the administrator has completed the following tasks:

1. Upgraded vCenter Server to vCenter Server 7.0 U1.

2. vSphere High Availability (HA) has been disabled on the vSAN Cluster.

3. Upgraded the vSAN witness host appliance to vSphere 7.0 U1.

4. Upgraded both vSAN data nodes to vSphere 7.0 U1.

The key requirement is to ensure that backwards compatibility to the existing version of vSAN is maintained during the upgrade process.

Which three additional steps should the administrator complete to ensure that subsequent clusters can share the same vSAN Witness? (Choose three.)

Options:

A.

Upgrade the vSAN On-Disk Format (ODF) to version 12.

B.

Manually update the vSAN Witness with a vSAN 7 license key.

C.

Update the vSAN cluster to use the new vSAN witness host appliance.

D.

Configure the existing witness host appliance to act as a shared witness.

E.

Deploy a new vSAN 7.0 U1 witness host appliance to act as a shared witness.

F.

Upgrade the vSAN On-Disk Format (ODF) to version 13.

Question 3

An administrator has an absent capacity disk.

Which action, if any, should the administrator take to resolve the problem?

Options:

A.

Wait, and vSAN will rebuild it.

B.

Replace the faulty disk.

C.

Replace the faulty host.

D.

Verify the host is not isolated.

Question 4

* Highest possible mitigation during a host failure in terms of capacity.

* A constraint in this year’s IT budget.

What should the architect recommend?

Options:

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.

Question 5

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?

Options:

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.

Question 6

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?

Options:

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.

Question 7

After a vSAN Witness Appliance network configuration, the vSAN administrator notices that vSAN traffic flows from vmk0 (Management Traffic) rather than vmk1 (vSAN Traffic).

Which step should be taken to resolve this issue?

Options:

A.

Configure vmk0 with IP address on the same range as that of vmk1.

B.

Tag the vmk0 for vSAN traffic.

C.

Configure vmk1 with IP address on the different network than that of vmk0.

D.

Tag the vmk1 for Witness traffic.

Question 8

Upon investigating a workload performance issue, a vSAN administrator observed a high backend IOPs on a vSAN cluster.

Which two causes explain this behavior? (Choose two.)

Options:

A.

The cluster DRS threshold has been set to Aggressive.

B.

There is a vSAN node failure.

C.

The vSAN Resync throttling is enabled.

D.

The object repair timer value has been increased.

E.

The vSAN policy protection level has changed from FTT=0 to FTT=1.

Question 9

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?

Options:

A.

Cluster out of the box

B.

Cluster in a box

C.

NFS on vSAN

D.

iSCSI on vSAN

Question 10

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.)

Options:

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.

Question 11

A vSAN policy has been configured with Erasure Coding on a vSAN stretched cluster.

Which RAID level and FTT setting have been specified?

Options:

A.

SFTT with RAID1

B.

PFTT with RAID1

C.

PFTT with RAID5/6

D.

SFTT with RAID5/6

Question 12

A company has deployed a 12-node (6-6-1) vSAN 7.0 stretched cluster for all production workloads.

The customer currently uses four different vSAN storage policies for running the workloads depending on the applications requirements:

* Policy 1 - Site Disaster Tolerance=Dual Site Mirroring, FTT=Erasure Coding

* Policy 2 - Site Disaster Tolerance=Dual Site Mirroring, FTT=Mirroring

* Policy 3 - Site Disaster Tolerance=None - Keep Data on Preferred, FTT=Mirroring

* Policy 4 - Site Disaster Tolerance=None - Keep Data on Non-Preferred, FTT=Mirroring

During the setup of the vSAN stretched cluster, the following VM/Host Rules were created:

* Preferred Site - Preferred Site workloads should run on DC1 hosts.

* Secondary Site - Secondary Site workloads should run on DC2 hosts.

Which two activities should the administrator complete to ensure that there is no impact to production services during the maintenance window in the Preferred Site? (Choose two.)

Options:

A.

Change the Site Disaster Tolerance setting in Policy 3 to be “Dual Site Mirroring”.

B.

Update vSphere DRS site affinity rules so that Preferred Site workloads should not run on hosts in DC1.

C.

Change the Site Disaster Tolerance setting in Policy 4 to be “None - Keep Data on Preferred”.

D.

Change the FTT setting in Policy 3 to be “Erasure Coding”.

E.

Update vSphere DRS site affinity rules so that Preferred Site workloads must run on hosts in DC2.

Question 13

An architect is designing a vSAN cluster.

Which storage controller option will yield optimal performance?

Options:

A.

Hugh queue depth

B.

Set caching to 50% read on the controller

C.

Enable battery write-back caching

D.

RAID 0

Question 14

Which three steps are required to decommission a stretched cluster and convert it to a standard vSAN cluster? (Choose three.)

Options:

A.

Reinstall the ESXi hosts

B.

Remove the Fault Domain configuration

C.

Remove the vSAN partition schema on the disk groups

D.

Delete the witness host VM

E.

Repair the cluster objects

F.

Disable and remove the stretched cluster

Question 15

During a maintenance action on a vSAN node, a vSAN administrator noticed that the default repair delay time is about to be reached.

Which two commands must be run to extend the time? (Choose two.)

Options:

A.

/etc/init.d/vsanmgmtd restart

B.

esxcli system settings advanced set -o /VSAN/ClomRepairDelay -i 50

C.

esxcli system settings advanced set -o /VSAN/ClomRepairDelay -i 80

D.

/etc/init.d/clomd restart

E.

/etc/init.d/vsanobserver restart

Question 16

An administrator is tasked with sharing storage from one vSAN cluster to another vSAN cluster. SPBM management must be preserved end-to-end, and the policy must be applied by the source vSAN cluster which is storing the data. Both vSAN clusters are managed by the same vCenter server.

What should the administrator configure?

Options:

A.

NFS volumes on vSAN

B.

iSCSI targets on vSAN

C.

HCI Mesh on vSAN

D.

vVOLs on vSAN

Question 17

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?

Options:

A.

6

B.

4

C.

5

D.

8

Question 18

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.)

Options:

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.

Question 19

A cache disk failure marked a vSAN disk group as failed, and the data is being rebuilt on other disk groups.

Which action should the vSAN administrator take to reduce the negative impact on the VMs?

Options:

A.

Enabling Resync Throttling

B.

Enabling Maintenance mode with no data evacuation

C.

Enabling automatic rebalance

D.

Setting the vSAN policy’s IOPS limit for object value to 0 (unlimited)

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Total 66 questions