Authentic Best resources for 5V0-22.23 Test Engine Practice Exam [Q10-Q27]

Q10. A vSAN administrator is noticing that the objects resynchronizing in the cluster are taking longer than expected and wants to view the resynchronizing metrics.
Which performance category should the vSAN administrator open?

Disks

Host Network

Resvnc Latency

Backend

Q11. An application refactor requires significant storage that is being added for logs stored on a VM vDISK. The application VMs run on a dedicated vSAN enabled vSphere Cluster with custom CPUs and RAM, and therefore, cannot vMotion to another vSAN enabled cluster.
The administrator needs a vSAN feature that can be used to allocate additional storage from another vSAN enabled vSphere cluster to this vSAN enabled Cluster.
Which vSAN feature should be used for this purpose?

vSAN File Services

vSAN HCI Mesh

vSAN Replication

vSAN Stretched Clusters

Q12. An existing vSAN OSA cluster has this specification:
Four ESXi hosts with all flash configuration
Each with two disk groups
Each disk group with one cache device and four capacity devices
There are five more device slots available per host
The CTO would like to provision new applications, and these will need more capacity and performance.
Which two methods should be used by the vSAN administrator to meet this goal with the least amount of impact? (Choose two.)

Replacing all capacity devices with a similar larger device

Replacing all cache devices with a larger device

Adding one more disk group per host with the same configuration

Adding faster cache devices

Adding an ESXi host with identical device configuration

Explanation
Adding one more disk group per host with the same configuration and adding an ESXi host with identical device configuration are the two methods that the vSAN administrator should use to meet the goal of increasing capacity and performance with the least amount of impact. Adding one more disk group per host will increase the raw storage capacity by 20% and also improve the performance by distributing the I/O load across more cache devices and disk groups. Adding an ESXi host with identical device configuration will increase the raw storage capacity by 25% and also improve the performance by adding more compute and network resources to the cluster. Both methods can be done without disrupting any ongoing operations or requiring any data evacuation or resynchronization.
The other options are incorrect for the following reasons:
Replacing all capacity devices with a similar larger device is incorrect because it will not increase the performance and will have a significant impact on the cluster. Replacing the capacity devices requires deleting the disk groups, which will erase all data on them and trigger a resynchronization of the affected objects. This can be disruptive and time-consuming, and also introduce additional network and disk traffic.
Replacing all cache devices with a larger device is incorrect because it will not increase the capacity and will have a significant impact on the cluster. Replacing the cache devices also requires deleting the disk groups, which will have the same drawbacks as replacing the capacity devices. Moreover, increasing the cache size may not improve the performance significantly, as vSAN OSA uses afixed cache ratio of
70% for write buffer and 30% for read cache, regardless of the cache device size.
Adding faster cache devices is incorrect because it will not increase the capacity and will have a significant impact on the cluster. Adding faster cache devices also requires deleting the disk groups, which will have the same drawbacks as replacing the cache devices. Furthermore, adding faster cache devices may not improve the performance significantly, as vSAN OSA uses a fixed cache ratio of 70% for write buffer and 30% for read cache, regardless of the cache device speed. References:
VMware vSAN Specialist v2 Exam Preparation Guide, page 10
Expanding a vSAN Cluster

Q13. A customer wishes to host a new range of applications with high-performance needs, specifically, low latency.
The applications are required to be hosted at company-owned edge locations, each with minimal rack space (three host slots per edge location for this project).
Which deployment options would satisfy the customer’s needs, while maximizing the amount of capacity available per deployment?

A new three-node vSAN 8.0 All-Flash Cluster with OSA in each edge location Each application VM configured with a RAID-5 VM storage policy

A new three-node vSAN 8.0 All-Flash Cluster with OSA in each edge location Each application VM configured with a RAID-1 VM storage policy

A new three-node vSAN 8.0 All-Flash Cluster with ESA in each edge location Each application VM configured with a RAID-1 VM storage policy

A new three-node vSAN 8.0 All-Flash Cluster with ESA in each edge location Each application VM configured with a RAID-5 VM storage policy

Explanation
To satisfy the customer’s needs for high-performance, low-latency applications at edge locations, the best deployment option is to use a new three-node vSAN 8.0 All-Flash Cluster with OSA in each edge location and configure each application VM with a RAID-1 VM storage policy. This option will provide the following benefits:
All-flash clusters offer the highest performance and lowest latency for vSAN, as they use flash devices for both cache and capacity tiers. Flash devices have faster read and write operations than magnetic disks, and they also support advanced features such as deduplication, compression, and encryption.
OSA stands for One Socket Architecture, which means that each host has only one CPU socket with multiple cores. This reduces the licensing cost and complexity of vSphere and vSAN, as well as the power consumption and cooling requirements of the hosts. OSA also improves the performance of vSAN by eliminating the NUMA effect, which is the latency caused by accessing memory or devices across different CPU sockets.
RAID-1 is a mirroring technique that creates two copies of each data component and places them on different hosts. This provides high availability and fault tolerance for the application VMs, as they can survive the failure of one host or disk. RAID-1 also offers better performance than RAID-5 or RAID-6, as it does not incur any parity overhead or additional write operations.
The other options are not optimal for the customer’s needs, as they either sacrifice performance or capacity.
Option A uses RAID-5, which is an erasure coding technique that splits each data component into three data segments and one parity segment, and distributes them across four hosts. This reduces the capacity consumption by 25%, but it also increases the write latency and network traffic, as each write operation requires four hosts to participate. Option C uses ESA, which stands for Enterprise Storage Architecture, which means that each host has two CPU sockets with multiple cores. This increases the licensing cost and complexity of vSphere and vSAN, as well as the power consumption and cooling requirements of the hosts.
ESA also introduces the NUMA effect, which can degrade the performance of vSAN by adding latency to access memory or devices across different CPU sockets. Option D uses RAID-5 with ESA, which combines the disadvantages of both options A and C.

Q14. How often does the Skyline Health interval validate online if there are new Health Checks available for vSAN?

Every 1 hour

Every 4 hours

Every 24 hours

Every 12 hours

Q15. A vSAN administrator has a cluster configured with a Storage Pool that was moved to a new physical DC.
Upon checking on the vSAN cluster health status, one of the ESXi hosts has two storage devices in a degraded state and must be replaced.
What must the vSAN administrator do to restore the health of the vSAN cluster with minimum risk?

Remove the host from ySAN configuration, replace the faulty disks, re-create the storage pool

Remove the entire storage pool, install the new devices, re-create the storage pool

Remove the host from the cluster, replace the faulty disks, re-add the host to the cluster

Remove the devices from the storage pool, replace the storage devices, claim the new devices in vSAN

Q16. What is the purpose of host rebuild reserve in vSAN?

Reserves space for internal operations

Reserves space in case of single host failure

Stores vSphere HA heartbeats

Allocates capacity for vCLS

Q17. After reviewing various performance charts at a cluster level, an administrator found an individual VM impacting overall performance of the vSAN cluster.
What feature should be used to introspect multiple performance metrics of a single virtual machine?

esxci

Skyline Health

I/O Trip Analyzer

llOlnsiqht

Q18. A vSAN administrator is responsible for managing a customer’s production vSAN cluster that is going to be used to provide SMB file shares to a number of host clients. The vSAN administrator must take action so the performance of all services in the production vSAN cluster can be monitored.
Which two services must be enabled for this monitoring to occur? (Choose two.)

vSAN Performance Diagnostic Service

iSCSI Target Service

vSAN File Services

vSAN Health Service

vSAN Performance Service

Q19. In which type of environment is vSAN storage used as a mandatory, primary storage?

VMware Cloud on AWS

VMware Horizon

VMware Aria Automation

TanzuKubernetes Grid Integrated Edition

Q20. What is the maximum amount of capacity disks an administrator can have in disk groups on a single vSAN OSA host?

35

40

30

25

Q21. An all-flash vSAN ESA cluster contains four nodes.
Which two storage policies can the cluster satisfy? (Choose two.)

FTT=3 (RAID-1 Mirroring)

FTT=2 (RAID-1 Mirroring)

FTT=I (RAID-5 Erasure Coding)

FTT=I (RAID-1 Mirroring)

FTT=2 (RAID-6 Erasure Coding)

Q22. All of the virtual machines running on a hybrid vSAN datastore have this storage policy assigned:
Failures to Tolerate (FTT) rule is set to “2 Failures – RAID-1 (Mirroring)” The vSAN administrator needs to reduce the amount of vSAN datastore capacity the virtual machines will consume.
Which action should the vSAN administrator take to meet this goal?

Modify the FTT rule to “2 Failures – RAID-5 (Erasure Coding)”

Add the “Flash read cache reservation” rule to the storage policy, and set to 0%

Disable Operations reserve and Host rebuild reserve and click “Apply”

Change the FTT rule to “1 Failure – RAID-1 (Mirroring)”, and select “Now” for Reapply to VMs

Q23. What is the minimum required number of hosts to provide data redundancy for a vSAN stretched cluster using dual-site mirroring and local protection with 1 failure – RAID-1 (Mirroring)?

3 hosts

4 hosts

6 hosts

Q24. An administrator is tasked to create a Kerberos secured NFS v4.1 file share.
Which information is minimally required during the configuration of the File Service?

Organizational Unit, User Account, Password

Active Directory Domain, User Account, Password

Kerberos Server, User Account, Password

Active Directory Domain. Organizational Unit, User Account. Password

Q25. Refer to the exhibit.
An administrator uses SSH to log into a vSAN ESA host and runs theesxcli vsan debug object overview command.

The administrator notices the Healthy Components column, the last column, is reporting some components are not in a fully healthy state.
What could cause this behavior?

New physical disks have been claimed and a rebalance operation is underway.

The applied Storage policy has been updated.

New VMDKs have been added to multiple VMs, but the storage policy has not finished applying.

One host is in maintenance mode with ensure accessibility.

Q26. A site administrator wishes to implement HCI mesh between two clusters on vSAN that are located in geographically separate sites and which are administered within a single datacenter.
Which two requirements should the vSAN administrator consider to accomplish this goal? (Choose two.)

Either Layer 2 or Layer 3 communications can be used

A leaf spine topology is required for core redundancy and reduced latency

NIC teaming must be implemented for the vSAN network vmkernel port

The configuration must meet the same latency and bandwidth requirement as local vSAN

Encryption must be disabled prior to configuring HCI mesh

Q27. After a server power failure, the administrator noticed the scheduled resyncing in the cluster monitor displays objects to be resynchronized under the pending category.
Why are there objects in this category?

The delay timer has not expired.

These objects belong to virtual machines, which are powered off.

Object resynchronization must be started manually.

There are too many objects to be synchronized.