5V0-21.20 practice test

1. Question 1 · 1

   An architect has been asked to plan the impact of a storage policy change to one of the production All-Flash based vSAN datastores. The change will reduce the failures to tolerate value from 2 to 1 for objects with a RAID-1 (Mirroring) layout in the existing policy. This change will be applied to multiple VMs. Which statement is correct in this scenario?

   Choose one answer.

   • FTT-2 requires another change to apply a RAID-6 configuration.
   • The policy will need to be recreated and applied with an additional tag.
   • There will be no objects rebuilt that impact performance.
   • There will be an object rebuild impact on performance.

2. Question 2 · 1

   Which storage policy can be assigned to virtual machines in a 5-node, all flash vSAN cluster, to provide the highest level of redundancy?

   Choose one answer.

   • 1 failure "" RAID-5 (Erasure Coding)
   • 2 failures "" RAID-6 (Erasure Coding)
   • 2 failures "" RAID-1 (Mirroring)
   • 3 failures "" RAID-1 (Mirroring)

3. Question 3 · 1

   A vSAN administrator wants to implement end-to-end prioritization of vSAN traffic across the network in a shared network infrastructure that is using vSphere Distributed Switches (VDS). Which two can help achieve this objective? (Choose two.)

   Choose all answers that apply.

   • Configure CoS or DSCP with high priority tag at the VDS and equivalent in the physical network.
   • Enable jumbo frames for vSAN VMkernel ports and configure LACP for optimal load balancing.
   • Enable Network I/O Control and allocate higher shares for vSAN traffic.
   • Configure multiple vSAN VMkernel interfaces to load balance across multiple uplinks.
   • Enable network resource pool at the VDS level to prioritize vSAN traffic.

4. Question 4 · 1

   An administrator is patching a production Stretched Cluster using VMware Update Manager. Which statement is accurate?

   Choose one answer.

   • The witness hosts can be patched using normal patch processes with VMware Update Manager.
   • Witness hosts cannot be patched or upgraded using VMware Update Manager.
   • The witness host does not need to be upgraded as there is no data on the node, just metadata.
   • The witness host must be deleted and a new witness host must be deployed.

5. Question 5 · 1

   Which should be verified before enabling deduplication and compression?

   Choose one answer.

   • Adequate space is available.
   • Ensure disk groups are balanced.
   • Autoclaim mode is enabled.
   • All hosts are in maintenance mode.

6. Question 6 · 1

   Three months ago, an administrator deployed vRealize Operations Manager from vCenter to manage his newly deployed four-node vSAN 6.7 All-Flash cluster. What must the administrator do to continue using vRealize Operations Dashboards for vSAN?

   Choose one answer.

   • Reconfigure the vSAN cluster.
   • Upgrade vRealize Operation Manager.
   • Apply the correct license to the vSAN cluster.
   • Reconfigure the vRealize Operations Manager.

7. Question 7 · 1

   An architect is designing network high availability for a new vSAN Cluster. Which is a supported configuration for this design?

   Choose one answer.

   • Use LACP on the distributed switch with a route based on IP hash algorithm.
   • Create multiple VMkernel adapters on the same subnet for vSAN.
   • Configure multicast to use two separate network interfaces for vSAN traffic.
   • Create an additional TCP/IP stack within the cluster and specify vSAN type.

8. Question 8 · 1

   Which three should be taken into consideration when configuring a Stretched Cluster? (Choose three.)

   Choose all answers that apply.

   • bandwidth between sites
   • geographical distance
   • number of objects
   • vSphere version
   • latency between sites

9. Question 9 · 1

   A major upgrade of the ESXi code on an existing vSAN cluster was just completed. Upon logging on to the vSphere Web Client, the vSphere administrator encounters UI timeouts on vSAN specific menus. What could cause this?

   Choose one answer.

   • vSphere Update Manager is offline.
   • vSAN Performance Service is offline.
   • vCenter Server has yet to be upgraded.
   • vSAN on-disk format has yet to be upgraded.

10. Question 10 · 1

    Refer to the exhibit: The vSAN Health service is reporting 'vSAN Cluster Partition' warning. The partition list shows all hosts from rack 1 in a single partition and all hosts from rack 2 in another partition. Which hardware component requires investigation to resolve the cluster partition?

    Choose one answer.

    

    • NICs on each host in Rack 2
    • vSAN Master node
    • core switch
    • ToR switches

11. Question 11 · 1

    An administrator arrives at work and begins their morning checks on a four node, all-flash vSAN Cluster. They notice the vSAN datastore reached 99% capacity due to a single node failure. How can the administrator provide temporary relief?

    Choose one answer.

    • change FTT=1 with RAID-5 (Erasure coding) to FTT=1 with RAID-1 (Mirroring)
    • change FTT=1 with RAID-1 (Mirroring) to FTT=1 with RAID-5 (Erasure coding)
    • change FTT=1 with RAID-1 (Mirroring) to FTT=0 No data redundancy
    • change FTT=1 with RAID-5 (Erasure coding) to FTT=0 No data redundancy

12. Question 12 · 1

    A company is using vSAN Data At Rest Encryption. vCenter is placed on a separate management cluster with external storage. The external storage system has suffered from a disk error and the vCenter Server restore from backup has been unsuccessful, due to media errors. Considering the scenario, which statement is true?

    Choose one answer.

    • All encrypted disk groups become unmounted and remain offline until vCenter Server is back online.
    • The data within the vSAN datastore is lost, if the hosts are powered off.
    • The VMs on the vSAN datastore need to be migrated to another datastore as quickly as possible to prevent data loss.
    • A new vCenter can be deployed using the existing KMS profile and associated with the existing vSAN encrypted clusters.

13. Question 13 · 1

    An architect has been asked to design a vSAN Stretched Cluster. The architect will configure Microsoft Active Directory to replicate between a server on Site A (preferred) and a server on Site B (non-preferred). The architect must minimize the amount of raw storage capacity used. Which storage policy needs to be applied to the Active Directory server on site A?

    Choose one answer.

    • Dual site mirroring
    • None "" standard cluster
    • None "" stretched cluster
    • None "" keep data on Preferred

14. Question 14 · 1

    An administrator would like to put a vSAN host in an existing vSAN Cluster in maintenance mode. vMotion is configured and DRS is set to Fully Automated and all other advanced settings are their defaults. The administrator uses this PowerCLI command: Set-VMHost -VMHost "esxi-host01.corp.local" -State "Maintenance" What is the default behavior?

    Choose one answer.

    • Virtual machines will be live migrated and all storage objects residing on this host will migrate to another host that is not in maintenance mode.
    • Virtual machines will be live migrated to another host not in maintenance mode and storage objects will be migrated if it is required to be accessible.
    • Virtual machines will be live migrated to another host not in maintenance mode and storage objects will not migrate regardless of policy and state.
    • Virtual machines will not be live migrated to another host not in maintenance mode and storage objects will be migrated if it is required to be accessible.

15. Question 15 · 1

    A healthy vSAN Stretched Cluster has the existing vSAN Witness Host swapped for a new vSAN Witness Host using the "Change Witness Host" wizard. If the administrator takes no further action, which two does the vSAN Health Check report show? (Choose two.)

    Choose all answers that apply.

    • Performance Service "" Stats DB Object "" object exists "" green
    • Performance Service "" Stats DB Object "" object health "" green
    • Data "" vSAN Object Health "" Reduced availability with no rebuild
    • Data "" vSAN Object Health "" Healthy
    • Performance Service "" Stats DB Object "" object health "" red

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