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5V0-21.21のPDF解答で完璧な予見5V0-21.21練習試験問題
VMware 5V0-21.21（VMware HCI Master Specialist）認定試験は、VMware VSPhereおよびVMware VSAN環境のIT専門家のスキルと知識を評価する専門的な認定テストです。この認定試験は、VMware VSphereおよびVMware VSAN環境の設計、展開、および管理に関与する専門家向けに設計されています。 VMware HCI Master Specialist認定試験は、高度な専門知識と経験を必要とする高度な認定です。
質問 # 43
A vSAN architect is reviewing an RFP (Request For Proposal) that has the following vSAN Ready Nodes requirements:
- CPU upgrades every two years.
- SAS drives will be changed to NVMe drives after one year.
- Introduce additional IO controllers to enhance performance.
What should the architect consider when writing the response?
- A. CPU upgrades are supported.
Changing the drive protocol in a vSAN Ready Node is not supported.
Only tested and certified IO controllers can be added. - B. CPU upgrades are not supported.
Changing the drive protocol in a vSAN Ready Node is supported.
Any HCL certified IO controllers can be added. - C. CPU upgrades are supported with only specific vSAN Ready Nodes.
Changing the drive protocol in a vSAN Ready Node is only supported with HCI appliances.
Only OEM-provided IO controllers can be added. - D. CPU upgrades requires opening a case with GSS.
Changing the drive protocol in a vSAN Ready Node requires disk wipeout.
Any OEM IO controller can be added.
正解：A
質問 # 44
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. Update vSphere DRS site affinity rules so that Preferred Site workloads must run on hosts in DC2.
- C. Update vSphere DRS site affinity rules so that Preferred Site workloads should not run on hosts in DC1.
- D. Change the Site Disaster Tolerance setting in Policy 4 to be "None -Keep Data on Preferred".
- E. Change the Site Disaster Tolerance setting in Policy 3 to be "Dual Site Mirroring".
正解：B、E
解説：
A: to replicate VMs on second site
E: to move compute for those VMs on second site
質問 # 45
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 Data-At-Rest Encryption on the vSAN cluster.
- B. Enable vMotion encryption on the vSAN cluster.
- C. Enable Data-In-Transit Encryption on the vSAN cluster.
- D. Enable virtual machine encryption on the vSAN cluster.
正解：C
質問 # 46
When designing a vSAN Cluster, which three should be considered when sizing a vSAN datastore? (Choose three.)
- A. endurance level of capacity disk used
- B. capacity device queue depth
- C. Storage Policy or Policies to be used
- D. On-Disk Format overheard
- E. vSAN Slack Space
- F. cache disks with 10% of the Disk Group
正解：C、D、E
解説：
https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.vsan-
planning.doc/GUID-581D2D5C-A88F-4318-A8B3-5A5F343F1247.html
質問 # 47
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. Incorrect sizing of the disk groups capacity disks
- B. vSAN encryption is enabled
- C. One or more disk groups are congested
- D. Large packet losses and retransmissions on the network layer
- E. vSAN VMKemel portgroup is configured with the "Route based on IP hash" teaming policy
正解：C、D
質問 # 48
A write intensive application has been deployed recently into an All-flash 4-node vSAN cluster.
Each node has one disk group with the following configuration:
- 1 x 400 GB SSD for Cache
- 4 x 3.84 TB SSD for Capacity
After the deployment, the administrator notices that the overall workload performance is degraded and observes a low-write, buffer-free percentage.
Which action should be taken to remediate this issue?
- A. Replacing the cache disk in the existing disk group with a larger one
- B. Increasing the number of capacity disks in the existing disk group
- C. Adding a second cache disk to the existing disk group
- D. Enabling automatic rebalance from the vSAN services advanced options
正解：A
質問 # 49
An administrator is planning to deploy cloud-native workloads onto the vSAN Direct datastore.
Which storage policy structure rule is supported?
- A. Storage performance-based rules
- B. vVOL storage rules
- C. Tag-based placement rules
- D. Host-based rules
正解：C
質問 # 50
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 vRealize Automation
- B. VMware Cloud Foundation
- C. VMware Tanzu
- D. VMware Horizon
正解：A
質問 # 51
A company hosts a vSAN 7 stretched cluster for all development workloads. The original sizing of a maximum of 250 concurrent workloads in the vSAN cluster is no longer sufficient and needs to increase to at least 500 concurrent workloads within the next six months. To meet this demand, the original 8-node (4-4-1) cluster has recently been expanded to 16 nodes (8-8-1).
Which three additional steps should the administrator take to support the current growth plans while minimizing the amount of resources required at the witness site? (Choose three.)
- A. Configure the new vSAN witness as a shared witness appliance.
- B. Configure the vSAN stretched cluster to use the new vSAN witness.
- C. Add the new vSAN witness appliance to vCenter Server.
- D. Upgrade the vSAN stretched cluster to vSAN 7.0 U1.
- E. Deploy a new large vSAN witness appliance at the witness site.
- F. Deploy a new extra large vSAN witness appliance at the witness site.
正解：B、C、E
解説：
Add the appliance to vCenter Server as a witness ESXi host. Make sure to configure the vSAN VMkernel interface on the host.
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan-
planning.doc/GUID-05C1737A-5FBA-4AEE-BDB8-3BF5DE569E0A.html
質問 # 52
A company has engaged a consultant to upgrade an existing vSAN cluster to vSAN 7.0 U1. The company wants to ensure that the same vSAN process can be used in the future. During the discovery phase, the consultant found the following information about the existing environment:
* The vCenter Server is currently version 7.0.
* The vSAN Cluster has the following configuration:
- vSAN version: 7.0
- Number of vSAN nodes: 6
- Encryption: enabled
- Deduplication and Compression: enabled
- Fault Domains: 1
- vSAN Capacity Utilization: 60%
* Each vSAN node has the following configuration:
- ESXi version: VMware vSphere 7.0
- CPU: 2 processors, 20 cores
- RAM: 1024GB RAM.
- Disk: 2 Cache SSDs and 6 Capacity SSDs
- Network: 4 x 10GbE
All current hardware (which is from a single vendor) is listed on the vSAN Compatibility Guide for vSAN 7.
Which three recommendations should the consultant make to ensure that the vSAN cluster upgrade is completed? (Choose three.)
- A. Upgrade all vSAN nodes to VMware vSphere 7.0 U1 using the baselines capability within VMware Update Manager (VUM).
- B. Disable vSAN Encryption before starting the upgrade process.
- C. Set VMware Distributed Resource Scheduling (DRS) to partially automated.
- D. Choose the Allow reduced redundancy option.
- E. Upgrade to VMware vCenter Server 7.0 U1.
- F. Upgrade all vSAN nodes to VMware vSphere 7.0 U1 using the images capability within VMware Update Manager (VUM).
正解：A、D、E
解説：
vSAN build recommendations are provided through vSAN system baselines for vSphere Lifecycle Manager. These system baselines are managed by vSAN. They are read-only and cannot be customized.
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan.doc/GUID- E87F7946-1EDE-45EE-9087-823F7E61FABF.html
質問 # 53
An administrator is setting up vSAN file services on a vSAN cluster.
Which two security policies on the distributed port groups are automatically enabled in the process? (Choose two.)
- A. MacLearning
- B. Promiscuous Mode
- C. Jumbo Frames
- D. Forged Transmits
- E. DVFiltering
正解：A、D
解説：
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan.doc/GUID-CA9CF043-9434-454E-86E7-DCA9AD9B0C09.html MacLearning and Forged Transmits are enabled as part of the vSAN File Services enablement process for a provided DVS port group.
質問 # 54
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?
- A. 0
- B. 1
- C. 2
- D. 3
正解：B
質問 # 55
During a vSAN design workshop, a customer expressed a requirement to decommission an existing enterprise NAS device that provides iSCSI services for a clustered application.
Based on the current state analysis, the following information was noted:
- Current utilization is 500 LUNs.
- All clustered workloads are configured for Multiple Connections per Session.
- LUN sizes range between 10 TB to 30 TB.
What should the architect state regarding the requirements?
- A. The number of LUNs require additional licensing.
- B. All requirements can be satisfied without any change.
- C. Only single connection per session is supported.
- D. It is a best practice to maintain a LUN size of 8 TB.
正解：C
解説：
https://kb.vmware.com/s/article/57344
質問 # 56
An administrator is discussing the "No Data Migration" vSAN maintenance mode.
In which situation should the administrator recommend this mode?
- A. When the vSAN host requiring maintenance is a compute node only
- B. When the VMs are protected by vSphere Fault Tolerance
- C. When the cluster has three fault domains configured
- D. When objects are configured with FTT=0
正解：D
質問 # 57
Which statement accurately describes the result when proper VM Storage Policy Affinity Rules on a stretched vSAN cluster are set?
- A. Proper policies result in higher inter-site bandwidth utilization.
- B. When a site is disconnected, the VM will continue to have access to its VMDK.
- C. When a site is disconnected, the VM will lose access to its VMDK.
- D. Bandwidth is unnecessarily sent across the inter-site link.
正解：B
解説：
Setting proper VM/Host Group Rules and VM Storage Policy Affinity Rules are beneficial for several reasons.
Bandwidth is not unnecessarily sent across the inter-site link.
Lower inter-site bandwidth utilization.
In the situation where the alternate site is disconnected, the VM will continue to have access to its vmdk.
https://core.vmware.com/resource/vsan-stretched-cluster-guide#sec7341-sub5
質問 # 58
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. Using the RVC command: vsan.resync_dashboard ~/computers/vsan-prod
- C. Running the vSAN Skyline Health check to ensure there are vSAN Object Health errors and executing the Repair Object Immediately option
- D. Upgrading the vSAN on-disk format
正解：C
質問 # 59
An architect is designing a vSAN cluster.
Which storage controller option will yield optimal performance?
- A. Set caching to 50% read on the controller
- B. Hugh queue depth
- C. Enable battery write-back caching
- D. RAID 0
正解：B
解説：
Storage Controller Queue Depth
There are two important items displayed by the VCG for storage I/O controllers that should be noted. The first of these is "features" and the second is queue depth.
Queue depth is extremely important, as issues have been observed with controllers that have very small queue depths. In particular, controllers with small queue depths (less than 256) can impact virtual machine I/O performance when vSAN is rebuilding components, either due to a failure or when requested to do so when entering maintenance mode.
Design Decision : Choose storage I/O controllers that have as large a queue depth as possible.
While 256 are the minimum, the recommendation would be to choose a controller with a much larger queue depth where possible.
https://core.vmware.com/resource/vmware-vsan-design-guide#sec6843-sub14
質問 # 60
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.)
- A. The cluster DRS threshold has been set to Aggressive.
- B. The object repair timer value has been increased.
- C. The vSAN policy protection level has changed from FTT=0 to FTT=1.
- D. There is a vSAN node failure.
- E. The vSAN Resync throttling is enabled.
正解：C、D
質問 # 61
During a design workshop for a stretched vSAN cluster, the requirement that some of the VMs be configured with no-mirror between sites was discussed.
Which three recommendations should the architect provide to address an event of a network partition between two sites? (Choose three.)
- A. The default gateway must be used as the only isolation address
- B. One of isolation addresses should reside in the site 2 data center
- C. One isolation address reachable only from the witness appliance in both sites
- D. Host isolation response must exclude the VMs required
- E. One of isolation addresses should reside in the site 1 data center
- F. VMware vSphere DRS rules to force the VMs to run where the data resides
正解：B、D、F
質問 # 62
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 Cloud Foundation
- B. VMware Tanzu
- C. VMware vRealize Automation
- D. VMware Horizon
正解：A
解説：
https://docs.vmware.com/en/VMware-Cloud-Foundation/3.10/vcf-deploy/GUID-E493608B-D4B6-
4C98-96CA-5D2D723ACE55.html
質問 # 63
During a vSAN design workshop, an architect collected these customer requirements:
* Leverage vSAN storage policies with Erasure Coding.
* Enable Deduplication and Compression.
* Use the minimum number of hosts in the cluster.
* Maintain full storage policy compliance when two nodes are down.
Which vSAN cluster design meets the customer's requirements?
- A. Five nodes All-Flash vSAN cluster
- B. Six nodes Hybrid vSAN cluster
- C. Six nodes All-Flash vSAN cluster
- D. Five nodes Hybrid vSAN cluster
正解：C
解説：
Reference: https://www.vmware.com/files/pdf/products/vsan/vmware-vsan-62-space-efficiency- technologies.pdf
質問 # 64
A 30-minute power maintenance window has been approved on Sunday. Due to a delay, the maintenance took 20 minutes longer to finish.
During this time, the vSAN administrator noticed that one of the clusters nodes was affected by a power shortage, as it was connected to an affected power source. The default vSAN storage policy has been applied.
What will be the status of the vSAN objects on the affected host immediately after it is recovered?
- A. All objects on the affected host will be lost.
- B. All objects will remain accessible.
- C. A rebuild of the affected objects will occur.
- D. The cluster will be partitioned and the vSAN host will need to be rejoined.
正解：B
解説：
The 60 Minutes Delay timer had not expired, the status of the objects will be NON complaint but will be accessible.
質問 # 65
Which three steps are required to decommission a stretched cluster and convert it to a standard vSAN cluster? (Choose three.)
- A. Remove the Fault Domain configuration
- B. Remove the vSAN partition schema on the disk groups
- C. Repair the cluster objects
- D. Disable and remove the stretched cluster
- E. Reinstall the ESXi hosts
- F. Delete the witness host VM
正解：A、C、D
解説：
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan-
planning.doc/GUID-1D3FE3B4-1BFE-4B0E-BDC3-3D388D2BEF61.html
質問 # 66
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VMware HCIマスタースペシャリスト認定試験は、VMware VSphereおよびVMware VSAN環境のIT専門家のスキルと知識を評価する挑戦的で包括的な認定テストです。この認定はIT業界で非常に尊敬されており、ITの専門家がキャリアの見通しを強化し、収益の可能性を高めるための素晴らしい方法です。 VMware HCI Master Specialist Certification Examの採用に興味がある場合は、VMware VSphereおよびVMware VSAN環境を十分に準備し、十分に理解することが重要です。
VMware 5V0-21.21試験は60問の多肢選択問題から成り、105分以内に解答する必要があります。試験はvSANアーキテクチャとコンポーネント、vSANネットワーキング、ストレージポリシーベースの管理、vSANデータ保護、vSANのトラブルシューティングなどのトピックをカバーしています。試験に合格するためには、候補者は少なくとも500点中300点以上を獲得する必要があります。VMwareは、候補者が試験を受ける前に少なくとも6か月間vSANで作業した経験があることを推奨しています。
5V0-21.21リアル試験問題と正確なVMware HCI Master SpecialistのPDF解答：https://www.jpntest.com/shiken/5V0-21.21-mondaishu