ベストVMware 5V0-21.21学習ガイドと問題集は2023年更新 [Q25-Q44]

ベストVMware 5V0-21.21学習ガイドと問題集は2023年更新

トップクラスVMware 5V0-21.21試験最先端学習ガイド！練習問題バージョン

VMware HCI Master Specialist認定試験は、多くの準備と献身が必要な挑戦的な試験です。この試験を受けることに興味のあるIT専門家は、VMware VSphereおよびVMware VSAN環境を十分に理解している必要があり、ネットワーキング、ストレージ、仮想化の強力なバックグラウンドを持っている必要があります。また、VMware VSphereおよびVMware VSAN環境の設計、展開、管理、およびトラブルシューティングの経験が必要です。

VMware 5V0-21.21（VMware HCI Master Specialist）試験は、VMware Hyper Converged Infrastructure（HCI）ソリューションの実装と管理に関する候補者のスキルと知識を検証する認定プログラムです。この試験は、組織のVMware HCIソリューションの管理と実装を担当するIT専門家向けに設計されています。この試験では、VMwareのHCIソリューションを設計、展開、管理、およびトラブルシューティングする候補者の能力をテストします。

VMware HCI Master Specialist Examとしても知られるVMware 5V0-21.21試験は、VMware VSANおよびVMware VSPhere環境の設計、実装、および管理の専門知識を実証したいITプロフェッショナル向けに設計されています。この試験は、VMwareテクノロジーを使用したハイパーコンバージドインフラストラクチャ（HCI）ソリューションの展開と管理に必要な高度なスキルと知識に焦点を当てています。

質問 # 25
An administrator is planning to deploy cloud-native workloads onto the vSAN Direct datastore.
Which storage policy structure rule is supported?

A. Tag-based placement rules
B. Host-based rules
C. vVOL storage rules
D. Storage performance-based rules

正解：B

質問 # 26
A vSAN administrator notices that all the applications on a vSAN cluster are suffering from performance degradation. The main applications on this cluster are very random write-intensive and generate a lot of i/o. De-staging seems to be going awfully slow.
Given the following information:
- Each host has a single disk group.
- Each disk group has 7 capacity disks.
- The size of each cache disk is 600 GB.
How should the administrator solve this problem?

A. Add additional disk groups
B. Add more cache disks
C. Add more capacity disks
D. Increase the size of cache disks

正解：D

質問 # 27
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 Tanzu
B. VMware Cloud Foundation
C. VMware vRealize Automation
D. VMware Horizon

正解：B

解説：
https://docs.vmware.com/en/VMware-Cloud-Foundation/3.10/vcf-deploy/GUID-E493608B-D4B6-
4C98-96CA-5D2D723ACE55.html

質問 # 28
In a stretched vSAN cluster, how is Read Locality established after fail over to the secondary site?

A. 100% of the reads comes from vSAN hosts on the local site
B. 50% of the reads comes from vSAN hosts on the remote site
C. 50% of the reads comes from vSAN hosts on the local site
D. 100% of the reads comes from vSAN hosts on the remote site

正解：A

質問 # 29
An administrator would like to upgrade a stretched vSAN cluster to vSAN 7.0 U1. The following information is known about the vSAN cluster:
- vSAN Version: 6.7 U3
- Total number of vSAN data nodes: 12
- Encryption: Enabled
- vSAN Total Used Capacity: 30%
- Single Hardware Vendor
Where possible, the administrator wants to ensure the latest management capabilities are used in order to ensure that any future vSAN upgrades are supported with minimal additional effort.
In preparation, the administrator has completed the following task:
- Upgraded vCenter Server to vCenter Server 7.0 U1.
Which two additional steps must the administrator complete? (Choose two.)

A. Upgrade the vSAN data nodes to vSphere 7.0 U1 using a vSphere Lifecycle Manager (vLCM) image.
B. Disable vSAN Encryption before attempting any vSAN upgrade.
C. Upgrade the vSAN data nodes to vSphere 7.0 U1 using a vSphere Lifecycle Manager (vLCM) baseline.
D. Upgrade the vSAN witness host appliance to vSphere 7.0 U1 using a vSphere Lifecycle Manager (vLCM) image.
E. Upgrade the vSAN witness host appliance to vSphere 7.0 U1 using a vSphere Lifecycle Manager (vLCM) baseline.

正解：A、E

質問 # 30
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?

A. Tag the vmk1 for Witness traffic.
B. Configure vmk1 with IP address on the different network than that of vmk0.
C. Configure vmk0 with IP address on the same range as that of vmk1.
D. Tag the vmk0 for vSAN traffic.

正解：B

解説：
The vmk1 interface cannot be configured with an IP address on the same range as that of vmk0.
This is because Management traffic and vSAN traffic use the default TCP/IP stack. If both vmk0 and vmk1 are configured on the same range, a multihoming condition will occur and vSAN traffic will flow from vmk0, rather than vmk1.

質問 # 31
An administrator of "vsan-prod" cluster noticed the witness components of VMs are flagged as absent after a failed attempt to replace the vSAN Witness Host.
Which action should the administrator take to resolve this issue?

A. Placing the vSAN Witness Host in Maintenance Mode and adding to the vSAN cluster
B. Upgrading the vSAN on-disk format
C. Running the vSAN Skyline Health check to ensure there are vSAN Object Health errors and executing the Repair Object Immediately option
D. Using the RVC command: vsan.resync_dashboard ~/computers/vsan-prod

正解：C

質問 # 32
An administrator is tasked to create a custom storage policy for workloads and is including additional disk stripes while defining the storage policy.
What is the main purpose of this practice?

A. To improve performance
B. To set a failure tolerance
C. To increase available storage space
D. To reconstruct corrupted data

正解：A

解説：
https://blogs.vmware.com/virtualblocks/2016/09/19/vsan-stripes/ Striping may help performance if certain virtual machines are I/O intensive and others are not.
The "number of disk stripes per object" storage policy rule attempts to improve performance by distributing data contained in a single object (such as a VMDK) across more capacity devices. https://blogs.vmware.com/virtualblocks/2021/01/21/stripe-width-improvements-in-vsan-7-u1/

質問 # 33
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 vmdk becoming inaccessible. Which step needs to be performed by the administrator to resolve the issue?

A. Replace the vSAN Witness Host
B. Replace only one failed disk on the preferred site.
C. Replace all failed disks on the preferred site.
D. Replace access to the existing vSAN Witness Host

正解：D

解説：
The vSAN Witness Host offline and 2 failures in the Preferred Site.
In each of the above failure cases, restoring access to the existing vSAN Witness would make the object accessible.
...
Deploying a new vSAN Witness would not because the components would not be present.
https://core.vmware.com/resource/vsan-stretched-cluster-guide#sec7373-sub5

質問 # 34
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.)

A. Update the vSAN cluster to use the new vSAN witness host appliance.
B. Configure the existing witness host appliance to act as a shared witness.
C. Manually update the vSAN Witness with a vSAN 7 license key.
D. Upgrade the vSAN On-Disk Format (ODF) to version 13.
E. Upgrade the vSAN On-Disk Format (ODF) to version 12.
F. Deploy a new vSAN 7.0 U1 witness host appliance to act as a shared witness.

正解：A、B、D

質問 # 35
A customer has upgraded to vSAN 7, but there is still an existing legacy host which must be removed from the vSAN cluster.
Which three steps must an administrator take to successfully remove this host from the vSAN cluster? (Choose three.)

A. Remove from vSAN cluster
B. Place the host in maintenance mode with no data migration
C. Place the host in maintenance mode with Full Data migration
D. Place the host in maintenance mode with Ensure Accessibility
E. Delete the disk group(s) on the legacy host
F. Disconnect from vCenter Server

正解：A、C、E

質問 # 36
In a vSAN stretched cluster, which value must be set in the vSAN policy if there is no requirement for data mirroring across sites?

A. SFTT = 1
B. PFTT = 0
C. SFTT = 0
D. PFTT = 1

正解：B

解説：
Primary level of failures to tolerate (PFTT). For stretched clusters, PFTT defines the number of site failures that a virtual machine object can tolerate. For a stretched cluster, only a value of 0 or
1 is supported.
Secondary level of failures to tolerate (SFTT). For stretched clusters, SFTT defines the number of additional host failures that the object can tolerate after the number of site failures defined by PFTT is reached. If PFTT = 1 and SFTT = 2, and one site is unavailable, then the cluster can tolerate two additional host failures.
The default value is 0, and the maximum value is 3.
So data mirroring across sites = PFTT
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan-
planning.doc/GUID-1BDC7194-67A7-4E7C-BF3A-3A0A32AEECA9.html

質問 # 37
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. NFS on vSAN
B. Cluster in a box
C. iSCSI on vSAN
D. Cluster out of the box

正解：A

解説：
Os independent is the requirements and High Availability. So vSAN 7 enable NFS and SMB on s SPBM cluster in wich Windows, Linux and MAC could have user profile with business continuity.
https://core.vmware.com/blog/redirecting-user-profiles-and-data-using-fslogix-and-vsan-file- services

質問 # 38
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. Reconfigure vCenter HA Admission control
B. Make sure that Witness traffic is on the management NIC.
C. Disable vSAN Deduplication and Compression
D. Enable vCenter Single Sign-On Enhanced Linked Mode

正解：D

質問 # 39
An administrator wants to deploy Kubernetes on an end-to-end VMware stack, using VMware vSAN for storage.
Which VMware product should the administrator install as the Kubernetes platform choice?

A. VMware Tanzu Kubernetes Grid
B. VMware Tanzu Mission Control
C. VMware Tanzu Build service
D. VMware Tanzu Data services

正解：A

解説：
Reference:
https://docs.vmware.com/en/VMware-Tanzu-Kubernetes-Grid-Integrated-Edition/index.html There is a picture with integration with vSAN

質問 # 40
A customer is planning to migrate their physical Microsoft SQL Server clustered workloads to vSAN enabled vSphere clusters.
The following requirements must be met:
* Each MSSQL cluster is made up of 3 nodes
* Highest possible availability against node failures
* Some of the vSAN clusters will only consume storage
What should the architect recommend?

A. Stretched vSAN Cluster
B. vSAN iSCSI Target Service
C. vSAN Direct
D. vSAN File Services

正解：B

解説：
vSAN 6.7 expands the functionality of the vSAN iSCSI Target service to provide the SCSI-3 persistent reservations support for shared disks for windows failover cluster if using the SQL Server FCI, high availability mode is a requirement. The vSAN iSCSI Target service at the vSAN cluster level should be enabled for this purpose. VSAN streched cluster may be used to increase the data availability across data centres.
https://blogs.vmware.com/virtualblocks/2019/03/26/considerations-for-running-microsoft-sql- server-workloads-on-vmware-vsan/

質問 # 41
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.)

A. Change the FTT setting in Policy 3 to be "Erasure Coding".
B. Change the Site Disaster Tolerance setting in Policy 4 to be "None -Keep Data on Preferred".
C. Change the Site Disaster Tolerance setting in Policy 3 to be "Dual Site Mirroring".
D. Update vSphere DRS site affinity rules so that Preferred Site workloads must run on hosts in DC2.
E. Update vSphere DRS site affinity rules so that Preferred Site workloads should not run on hosts in DC1.

正解：C、D

解説：
A: to replicate VMs on second site
E: to move compute for those VMs on second site

質問 # 42
cluster for a customer who is planning to use vRealize Automation to provision 600 virtual machines into that cluster, with expected growth up to 1,000 VM. Each VM has a 40GB thick- provisioned disk. Which flash disk size is required for the cache tier per ESXi node to meet all requirements?

A. 400GB
B. 700GB
C. 800GB
D. 600GB

正解：C

解説：
40GB x 1000VMs = 40 000 GB total max expected usage
40 000GB /5 node cluster = 8000 GB per node
cache 10% of total node capacity and hence 8000GB = 800GD SSD cache

質問 # 43
An administrator has changed the Virtual Machine Storage Policy from RAID-5 to RAID-6.
How many failures can be tolerated when this change is made?