Pass 5V0-21.21 Exam - Real Test Engine PDF with 68 Questions
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NEW QUESTION # 33
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. Running the vSAN Skyline Health check to ensure there are vSAN Object Health errors and executing the Repair Object Immediately option
- B. Upgrading the vSAN on-disk format
- C. Placing the vSAN Witness Host in Maintenance Mode and adding to the vSAN cluster
- D. Using the RVC command: vsan.resync_dashboard ~/computers/vsan-prod
Answer: A
Explanation:
vSAN Witness Host (so there is strech cluster) must reside in vcenter datacenter container and not be added in vSAN cluster.
NEW QUESTION # 34
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?
- A. NFS volumes on vSAN
- B. iSCSI targets on vSAN
- C. HCI Mesh on vSAN
- D. vVOLs on vSAN
Answer: C
Explanation:
HCI Mesh is a unique, software-based approach for disaggregation of compute and storage resources. HCI Mesh brings together multiple independent vSAN clusters for a native, cross- cluster architecture that disaggregates resources and enables utilization of stranded capacity.
Simply, vSAN allows one or more vSAN clusters to remotely mount datastores from other vSAN clusters (servers) within vCenter inventory. This approach maintains the essence and simplicity of HCI by not fundamentally changing the existing HCI model or requiring specialized hardware.
Now, a cluster with excess compute can mount excess storage from a remote vSAN cluster.
NEW QUESTION # 35
An administrator managing a vSAN cluster of six-nodes with policy FTT-2/RAID-6 decided to put one of the nodes in maintenance mode using the "Full-data migration" option.
What will happen after this action is taken?
- A. The host will enter in maintenance mode and only data with no redundancy will remain accessible.
- B. The system will prompt to add an additional host to the cluster in order to preserve the policy compliance.
- C. The host will enter into maintenance mode if both components of a certain object are residing on that host, then one of the components will be moved to another available host.
- D. The host will enter in maintenance mode and the data will remain accessible until the host exits maintenance mode.
Answer: D
NEW QUESTION # 36
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 only one failed disk on the preferred site.
- B. Replace all failed disks on the preferred site.
- C. Replace the vSAN Witness Host
- D. Replace access to the existing vSAN Witness Host
Answer: D
Explanation:
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
NEW QUESTION # 37
Due to the success of the recently deployed developer-only private cloud solution, a company has a new requirement to increase the cache size and overall capacity of the solution to support an unexpected change in the workload profile and increase the overall performance of the solution.
The current vSAN cluster has the following configuration:
- 6 vSAN Nodes with 2 CPUs (20 cores), 512 GB RAM
- 2 Disk Groups per vSAN node (2 x 400 GB, 6 x 3.84 TB)
- De-duplication and Compression is enabled.
- Encryption is enabled.
- vSAN Total Capacity is: ~112 TB RAID6/FTT=2 (80% utilized)
Following the administrator's recommendations, the service owner agrees to purchase 12 x 800 GB SSDs and 36 x 3.84 TB SSDs to upgrade the vSAN but would like to ensure that during the upgrade the availability of the workloads are not affected.
Which three actions should the administrator take to meet this requirement? (Choose three.)
- A. Create one new Disk Group (with 1 x 800 GB, 3 x 3.84 TB per node) on the vSAN Cluster using the new storage devices.
- B. Remove the old Disk Groups, and claim the original capacity drives equally across the remaining Disk Groups.
- C. Create two new Disk Groups (each with 1 x 800 GB, 3 x 3.84 TB per node) in the vSAN Cluster using the new storage devices.
- D. Put each vSAN node into maintenance mode using the Ensure Accessibility option.
- E. Migrate all existing workloads to the new Disk Group(s).
- F. Remove the old Disk Groups, and create a new Disk Group using all remaining cache and capacity devices.
Answer: A,C,D
NEW QUESTION # 38
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 virtual machine encryption on the vSAN cluster.
- B. Enable vMotion encryption on the vSAN cluster.
- C. Enable Data-At-Rest Encryption on the vSAN cluster.
- D. Enable Data-In-Transit Encryption on the vSAN cluster.
Answer: D
Explanation:
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan.doc/GUID-10099331-92E7-41AF-BCAA-88DB4B4A4B7B.html
NEW QUESTION # 39
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. vSAN iSCSI Target Service
- B. Stretched vSAN Cluster
- C. vSAN File Services
- D. vSAN Direct
Answer: A
Explanation:
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/
NEW QUESTION # 40
An administrator is setting up vSAN file services on a vSAN cluster but is unable to join the vSAN File Services to the domain.
Which two possible reasons could explain this failure? (Choose two.)
- A. The administrator was using IP addresses from an IP pool.
- B. The administrator wanted to register the file services to a sub-domain.
- C. A read-only domain controller was being used.
- D. The administrator did not pre-create a dedicated organizational unit in Active Directory.
- E. The administrator was using pre-created computer objects for the file services in the Active Directory.
Answer: B,C
Explanation:
https://docs.vmware.com/en/VMware-vSphere/8.0/vsan-administration/GUID-CA9CF043-9434-454E-86E7-DCA9AD9B0C09.html
NEW QUESTION # 41
Where would an administrator enable deduplication and compression in a vSAN environment?
- A. at the cluster level under vSAN services
- B. at the disk group level
- C. at the object level using storage policies
- D. at the host level using ESXCLI commands
Answer: A
Explanation:
Consider these guidelines when you configure deduplication and compression in a vSAN cluster.
- Deduplication and compression are available only on all-flash disk groups.
- On-disk format version 3.0 or later is required to support deduplication and compression.
- You must have a valid license to enable deduplication and compression on a cluster.
- When you enable deduplication and compression on a vSAN cluster, all disk groups participate in data reduction through deduplication and compression.
You can enable deduplication and compression when you configure a new vSAN all-flash cluster.
NEW QUESTION # 42
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. Update vSphere DRS site affinity rules so that Preferred Site workloads should not run on hosts in DC1.
- B. Change the Site Disaster Tolerance setting in Policy 3 to be "Dual Site Mirroring".
- C. Update vSphere DRS site affinity rules so that Preferred Site workloads must run on hosts in DC2.
- D. Change the Site Disaster Tolerance setting in Policy 4 to be "None -Keep Data on Preferred".
- E. Change the FTT setting in Policy 3 to be "Erasure Coding".
Answer: B,C
Explanation:
A: to replicate VMs on second site
E: to move compute for those VMs on second site
NEW QUESTION # 43
An administrator wants to enable encryption on an existing vSAN cluster that already contains virtual machines.
Which additional step should the administrator take to ensure no data is lost during the encryption process?
- A. Make vCenter Server trust the KMS, either by trusting the KMS or by uploading a KMS certificate.
- B. Ensure that the vSAN Encryption is enabled by default on the existing cluster to encrypt old and new data.
- C. Select 'Erase disks before use' check box when enabling encryption on a vSAN cluster.
- D. Disable vSphere Distributed Resources Schedule (DRS) on the vSAN cluster.
Answer: C
NEW QUESTION # 44
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
Answer: A
NEW QUESTION # 45
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. PFTT = 1
- B. SFTT = 0
- C. PFTT = 0
- D. SFTT = 1
Answer: C
Explanation:
PFTT can be seen as "site failures", and you can always only tolerate 1 at most. SFTT can be seen as host failures, and you can define this between 0 and 3 https://www.yellow-bricks.com/2018/03/19/vsan-stretched-cluster-pftt-and-sftt-what-happens-when-a-full-site-fails-and-multiple-hosts-fail/
NEW QUESTION # 46
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. Enable vCenter Single Sign-On Enhanced Linked Mode
- B. Reconfigure vCenter HA Admission control
- C. Make sure that Witness traffic is on the management NIC.
- D. Disable vSAN Deduplication and Compression
Answer: A
Explanation:
Stretched storage is supported only on vCenter Single Sign-On Enhanced Linked Mode environments. Planned migration with Cross vCenter Server vMotion fails if the sites are not Enhanced Linked Mode. Stretched storage is required when using Cross vCenter Server vMotion during a planned migration.
https://docs.vmware.com/en/Site-Recovery-Manager/8.5/com.vmware.srm.admin.doc/GUID- B64096E8-F49A-4BF6-92CE-05FBA972F3C0.html
NEW QUESTION # 47
Which statement accurately describes the result when proper VM Storage Policy Affinity Rules on a stretched vSAN cluster are set?
- A. When a site is disconnected, the VM will lose access to its VMDK.
- B. Proper policies result in higher inter-site bandwidth utilization.
- C. When a site is disconnected, the VM will continue to have access to its VMDK.
- D. Bandwidth is unnecessarily sent across the inter-site link.
Answer: A
NEW QUESTION # 48
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