5V0-21.21 practice test

1. Question 1 · 1

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

   Choose one answer.

   • 100% of the reads comes from vSAN hosts on the local site
   • 50% of the reads comes from vSAN hosts on the local site
   • 100% of the reads comes from vSAN hosts on the remote site
   • 50% of the reads comes from vSAN hosts on the remote site

2. Question 2 · 1

   During a maintenance action on a vSAN node, a vSAN administrator noticed that the default repair delay time is about to be reached. Which two commands must be run to extend the time? (Choose two.)

   Choose all answers that apply.

   • /etc/init.d/vsanmgmtd restart
   • esxcli system settings advanced set -o /VSAN/ClomRepairDelay -i 50
   • esxcli system settings advanced set -o /VSAN/ClomRepairDelay -i 80
   • /etc/init.d/clomd restart
   • /etc/init.d/vsanobserver restart

3. Question 3 · 1

   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.)

   Choose all answers that apply.

   • vSAN VMKemel portgroup is configured with the ג€Route based on IP hashג€ teaming policy
   • vSAN encryption is enabled
   • Large packet losses and retransmissions on the network layer
   • Incorrect sizing of the disk groups capacity disks
   • One or more disk groups are congested

4. Question 4 · 1

   An architect is designing for a production vSAN cluster, and the customer introduced these requirements related to File Services: ✑ A minimum of 12 files shares. ✑ 30TB NFS capacity to mount workload VMs. What should be the architect's recommendations?

   Choose one answer.

   • Point out the risks regarding putting the hosts in maintenance mode in terms of FSVM.
   • Confirm on all of the requirements and move forward with the physical design.
   • Raise concerns regarding support when running VMs on an NFS share as risk.
   • Highlight the required number of nodes required for the vSAN cluster as a constraint.

5. Question 5 · 1

   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?

   Choose one answer.

   • The cluster will be partitioned and the vSAN host will need to be rejoined.
   • A rebuild of the affected objects will occur.
   • All objects will remain accessible.
   • All objects on the affected host will be lost.

6. Question 6 · 1

   Due to the success of the recently deployed developer-only private cloud solution, a company has a new requirement to at least double the usable capacity in their all-flash vSAN cluster. The vSAN cluster is deployed into a co-located datacenter that is owned by a third-party hosting company. The hosting company charges a fixed monthly cost for rack space and power consumption. The service owner has been given a limited budget for additional hardware purchases, but not for on-going co-location costs. The current vSAN cluster has the following configuration: ✑ 10 vSAN Nodes with 2 CPUs (20 cores), 512 GB RAM ✑ 1 Disk Group per vSAN node - 1 x 400 GB - 4 x 1.8 TB ✑ De-duplication and Compression is enabled. ✑ vSAN Capacity is currently: - Total: 72 TB - Usable: ~40 TB (FTT1/RAID1) and ~60 TB (FTT1/RAID5). As a result of any action taken, the service owner would like to ensure that overall availability of the vSAN cluster is increased. Which two recommendations meet the requirement to increase capacity while maintaining service availability? (Choose two.)

   Choose all answers that apply.

   • Install an additional 400 GB SSD and 4 x 1.8 TB SSDs per vSAN node.
   • Update the existing Disk Group, and claim the newly installed drives for each node.
   • Create a new Disk Group, and claim the newly installed cache and capacity SSD drives for each node.
   • Install an additional 3 x 1.8 TB SSDs per vSAN node.
   • Replace existing SSDs with an 800 GB SSD and 4 x 3.8 TB SSDs per vSAN node.

7. Question 7 · 1

   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?

   Choose one answer.

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

8. Question 8 · 1

   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.)

   Choose all answers that apply.

   • Place the host in maintenance mode with Ensure Accessibility
   • Disconnect from vCenter Server
   • Place the host in maintenance mode with Full Data migration
   • Place the host in maintenance mode with no data migration
   • Remove from vSAN cluster
   • Delete the disk group(s) on the legacy host

9. Question 9 · 1

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

   Choose one answer.

   • SFTT = 0
   • SFTT = 1
   • PFTT = 1
   • PFTT = 0

10. Question 10 · 1

    An administrator is tasked with setting up Kerberos authentication only for the vSAN File services. Which version of Kerberos must be selected if the NFS version is v4.1?

    Choose one answer.

    • krb5i
    • krb4
    • krb5
    • krb5p

11. Question 11 · 1

    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?

    Choose one answer.

    • Select 'Erase disks before use' check box when enabling encryption on a vSAN cluster.
    • Make vCenter Server trust the KMS, either by trusting the KMS or by uploading a KMS certificate.
    • Ensure that the vSAN Encryption is enabled by default on the existing cluster to encrypt old and new data.
    • Disable vSphere Distributed Resources Schedule (DRS) on the vSAN cluster.

12. Question 12 · 1

    An organization has two vSAN clusters managed by the same vCenter Server, each providing 100TB of storage. The first cluster runs at 75% of its storage capacity, and the second cluster runs at 50% of its storage capacity. The company also has the following: ✑ An iSCSI array of 300TB. which runs at 76% of its capacity ✑ A NAS system of 200TB, which runs at 10% of its capacity ✑ A Fiber channel (FC) array of 300TB, which runs at 80% of its capacity The administrator is asked to add an additional 25TB of storage to the first cluster. The administrator is also made aware that there is no budget to purchase new hardware and that the vSAN Storage Policy Based Management must be kept in place. Which storage option will work for this use case?

    Choose one answer.

    • Create an HCI Mesh using the first cluster's datastore.
    • Obtain additional free capacity from the existing NAS storage.
    • Obtain additional free capacity from the existing FC storage.
    • Create an HCI Mesh using the second cluster's datastore.

13. Question 13 · 1

    A cache disk failure marked a vSAN disk group as failed, and the data is being rebuilt on other disk groups. Which action should the vSAN administrator take to reduce the negative impact on the VMs?

    Choose one answer.

    • Enabling Resync Throttling
    • Enabling Maintenance mode with no data evacuation
    • Enabling automatic rebalance
    • Setting the vSAN policy's IOPS limit for object value to 0 (unlimited)

14. Question 14 · 1

    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?

    Choose one answer.

    • Cluster out of the box
    • Cluster in a box
    • NFS on vSAN
    • iSCSI on vSAN

15. Question 15 · 1

    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.)

    Choose all answers that apply.

    • Host isolation response must exclude the VMs required
    • The default gateway must be used as the only isolation address
    • One of isolation addresses should reside in the site 1 data center
    • VMware vSphere DRS rules to force the VMs to run where the data resides
    • One isolation address reachable only from the witness appliance in both sites
    • One of isolation addresses should reside in the site 2 data center

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