VMware 3V0-21.21 Exam Practice Test Instant Access

Question 1

An architect makes the design decision to install ESXi on embedded and resilient 8 GB SD cards.

What is the impact of this design decision?

AHost profiles must be used for this kind of installation

BScratch partition would need to be created on the external storage

CThe size of the SD cards is too small and the installation will fail

DThe vSphere Auto Deploy feature must be enabled on vCenter Server

Answer : B

https://kb.vmware.com/s/article/2074026 You can store coredumps on the SD boot media, but refrain from configuring the scratch partition here as the logs are write intensive and can cause the SD card to fail faster resulting in re-installation of ESXi

https://blogs.vmware.com/vsphere/2021/09/esxi-7-boot-media-consideration-vmware-technical-guidance.html

A configuration involving the usage of SD card or USB drives as boot media is a minimum of8 GB SD card or USB drive + Locally attached persistent storage device for ESX-OSData partitionmay be used but is also not recommended.Recommended list of locally attached storage devices are listed below.In any case, if an SD or USB device is used for boot media (only SD/USB or SD/USB + local HDD/SSD disk), follow the below instructions to reduce the amount of IO sent to the SD or USB boot media:Enable the ToolsRamDisk option to offload VMTools install/upgrade IO requests on the RAM disk.Ensure the/scratchpartition is configured on persistent storage like a local HDD/SSD or boot from the SAN device.

Question 2

An architect is tasked with planning the design of a new vSphere environment. When commissioned, this environment will be used to migrate an existing set of virtual machines.

An inventory of the existing infrastructure, including configured vCPU, RAM and storage sizes has been provided.

In order for each virtual machine to be migrated, which two data sources with peak and average utilization data are required for sizing? (Choose two.)

A%Ready

BDisk Write latency

CCPU

DBallooned memory

EIOPS

Answer : C, E

'which two data sources with peak and average utilization data are required for sizing'

Only CPU and IOPS provide peak and average values. You could get them using for example vRealize Operations Manager.

https://sysarticles.com/vmware-vsphere-analyzing-the-current-state/

Question 3

Which two of the listed requirements would be classified as performance non-functional requirements? (Choose two.)

AThe vSphere platform must be able to provide a recovery time objective of 30 minutes

BThe vSphere platform must be able to provide a minimum throughput of 400 MB/s

CThe vSphere platform must be able to provide N+1 redundancy

DThe vSphere platform must be able to provide a maximum read latency of 15 ms

EThe vSphere platform must be able to provide a service-level agreement (SLA) of 99,9%

Answer : B, D

Question 4

Refer to the exhibit.

During a requirements gathering workshop, the customer shares the following diagram regarding their availability service-level agreements (SLAs):

The customer wants database application level availability to always take precedence. What should the architect recommend to meet the customer's requirement?

AEnable vSphere HA and add a VM Override with VM Restart Priority set to Highest.

BEnable Fault Tolerance.

CEnable Sphere HA and maintain the default settings.

DEnable vSphere HA and add a VM Override with VM Restart Priority set to Lowest.

Answer : A

default is medium, lowest cannot address the requirement 'take precedence' to 'database application level'.

Question 5

Refer to the exhibit.

During a requirements gathering workshop, the customer shares the following about their existing ESXi host virtual networking infrastructure:

The customer confirms that:

Each ESXi host has approximately 200 virtual machines.

They want to maximize the number of concurrent virtual machine migrations.

When placing a host in maintenance mode, it takes a long time to evacuate the virtual machines.

Which two recommendations should the architect make in order to help the customer overcome their challenge? (Choose two.)

AConfigure the network to use MTU for the VMotion VMKernel to 1,600 bytes

BConfigure the network to use MTU for the VMotion VMKernel to 9,000 bytes

CCreate an additional standard switch with pNIC3 to use for vMotion

DUse the 3 pNICs and bundle them in a link aggregation group (LAG) configuration

EUse 10 GbE NICs instead of 1 GbE

Answer : B, E

https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vcenterhost.doc/GUID-7DAD15D4-7F41-4913-9F16-567289E22977.html

10Gb maximizes the amount of bandwidth, as well as increases the number of potential simultaneous vmotions.

Question 6

Which of the listed requirements would be classified as a recoverability non-functional requirement?

AThe platform must be integrated with existing change control policies.

BThe platform must be able to support a maximum tolerable downtime (MTD) of 30 minutes.

CMaintenance windows must be scheduled to take place monthly during an established overnight period.

DThe platform must be available 24 hours a day, 7 days a week with the exception of scheduled downtime.

Answer : B

Recoverability - Easy to restore after an outage

Mesurements : MTD, RPO, RTO

Question 7

An architect is designing a vSphere environment for a customer based on the following information:

The vSphere cluster will have three hosts only due to budget considerations.

A database cluster (node majority) consisting of three virtual machines will be running on the vSphere cluster.

Which two recommendations can the architect make so that the customer achieves the highest level of

application availability while taking into consideration operational resiliency? (Choose two.)

ACreate VM-VM anti-affinity rules

BSet das.respectvmvmantiaffinityrules to false

CCreate VM-Host anti-affinity rules

DDisable vSphere HA during maintenance

ESet das.ignoreinsufficienthbdatastore to true

Answer : A, B

A) Create VM-VM anti-affinity rules - A VM-VM affinity rule specifies whether selected individual virtual machines should run on the same host or be kept on separate hosts. https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.resmgmt.doc/GUID-94FCC204-115A-4918-9533-BFC588338ECB.html B. Set das.respectvmvmantiaffinityrules to false - Determines if vSphere HA enforces VM-VM anti-affinity rules. The default value is 'true' and rules are enforced even if vSphere DRS is not enabled. In this case, vSphere HA does not fail over a virtual machine if doing so violates a rule

VMware Advanced Design VMware vSphere 7.x 3V0-21.21 Exam Practice Test