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質問 1：
An administrator observes this health check warning:
Controller firmware is VMware certified
They proceed to update the latest firmware on the Storage Controller. After a successful firmware upgrade, the same health check alert continues to display.
Which statement is true?
A. The recently installed firmware is yet to be certified and included in VMware Compatibility Guide.
B. Controller is not VMware certified and hence any firmware version displays a warning.
C. The VMware vSAN Health Service needs to be restarted for changes to take effect.
D. The alert can be ignored and silenced, since the firmware is newer than the recommended firmware.
正解：A
質問 2：
A hardware 10 controller manufacturer has released a new version of firmware which brings performance improvements to the controller that the vSAN disk group is currently using. The administrator would like to upgrade to the new firmware version.
Which action should the administrator perform?
A. Check against the vSAN Compatibility Guide that this new firmware version Is certified and Install it with any certified driver.
B. Install the latest version of vSphere before upgrading to the newest version of firmware.
C. Install the new firmware as soon as possible after testing in his/her lab to take advantage of the performance improvements.
D. Check against the vSAN Compatibility Guide for the correct certified firmware and driver combination and upgrade both firmware and driver.
正解：C
質問 3：
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?
A. change FTT=1 with RAID-1 (Mirroring) to FTT=0 No data redundancy
B. change FTT=1 with RAID-1 (Mirroring) to FTT=1 with RAID-5 (Erasure coding)
C. change FTT=1 with RAID-5 (Erasure coding) to FTT=1 with RAID-1 (Mirroring)
D. change FTT=1 with RAID-5 (Erasure coding) to FTT=0 No data redundancy
正解：B
質問 4：
Refer to the exhibit.
D18912E1457D5D1DDCBD40AB3BF70D5D
A vSAN Cluster stretched across Data Site 1 and Data Site 2 has a vSAN data network configured with an MTU of 9000. The witness node has been placed in a remote site across a WAN with an MTU of 1500. The vSAN health check, 'vSAN: MTU check (ping with large packet size) , reports a failed ping.
What two actions could resolve the issue? (Choose two.)
A. Reconfigure WAN link to support an MTU of 9000.
B. Reduce the MTU from 9000 to 1500 on all vSAN VMkernel interfaces.
C. Reconfigure the VLAN of the witness traffic to be identical to data nodes.
D. Configure proper routing from data sites to the witness across the WAN.
E. Stretch L2 traffic from WAN to both data sites.
正解：A,B
質問 5：
Reference the exhibit:
Which two statements are accurate considering the state shown In the exhibit? (Choose two.)
A. This vSAN cluster may experience problems with vSAN performance statistics retrieval.
B. This vSAN cluster may exhibit signs of a network partition.
C. The problematic host should be configured to start NTP automatically and connect to the same NTP server as other hosts.
D. The problematic host will partition thus loosing connectivity from the vSAN cluster.
E. The problematic host will experience erratic 10 performance If NTP settings are not corrected.
正解：A,E
質問 6：
Which Kubernetes information is exposed in the vSphere Client to help a vSAN administrator filter Container Volumes based on their usage?
A. Pod name
B. StatefulSet
C. StorageClass
D. Labels
正解：C
質問 7：
Which should be verified before enabling de duplication and compression?
A. All hosts are in maintenance mode.
B. Adequate space is available.
C. Autoclaim mode is enabled.
D. Ensure disk groups are balanced.
正解：B
質問 8：
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.)
A. Performance Service - Stats DB Object - object health - green
B. Data - vSAN Object Health - Reduced availability with no rebuild
C. Performance Service - Stats DB Object - object exists - green
D. Performance Service - Stats DB Object - object health - red
E. Data - vSAN Object Health - Healthy
正解：B,D
An administrator observes this health check warning:
Controller firmware is VMware certified
They proceed to update the latest firmware on the Storage Controller. After a successful firmware upgrade, the same health check alert continues to display.
Which statement is true?
A. The recently installed firmware is yet to be certified and included in VMware Compatibility Guide.
B. Controller is not VMware certified and hence any firmware version displays a warning.
C. The VMware vSAN Health Service needs to be restarted for changes to take effect.
D. The alert can be ignored and silenced, since the firmware is newer than the recommended firmware.
正解：A
質問 2：
A hardware 10 controller manufacturer has released a new version of firmware which brings performance improvements to the controller that the vSAN disk group is currently using. The administrator would like to upgrade to the new firmware version.
Which action should the administrator perform?
A. Check against the vSAN Compatibility Guide that this new firmware version Is certified and Install it with any certified driver.
B. Install the latest version of vSphere before upgrading to the newest version of firmware.
C. Install the new firmware as soon as possible after testing in his/her lab to take advantage of the performance improvements.
D. Check against the vSAN Compatibility Guide for the correct certified firmware and driver combination and upgrade both firmware and driver.
正解：C
質問 3：
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?
A. change FTT=1 with RAID-1 (Mirroring) to FTT=0 No data redundancy
B. change FTT=1 with RAID-1 (Mirroring) to FTT=1 with RAID-5 (Erasure coding)
C. change FTT=1 with RAID-5 (Erasure coding) to FTT=1 with RAID-1 (Mirroring)
D. change FTT=1 with RAID-5 (Erasure coding) to FTT=0 No data redundancy
正解：B
質問 4：
Refer to the exhibit.
D18912E1457D5D1DDCBD40AB3BF70D5D
A vSAN Cluster stretched across Data Site 1 and Data Site 2 has a vSAN data network configured with an MTU of 9000. The witness node has been placed in a remote site across a WAN with an MTU of 1500. The vSAN health check, 'vSAN: MTU check (ping with large packet size) , reports a failed ping.
What two actions could resolve the issue? (Choose two.)
A. Reconfigure WAN link to support an MTU of 9000.
B. Reduce the MTU from 9000 to 1500 on all vSAN VMkernel interfaces.
C. Reconfigure the VLAN of the witness traffic to be identical to data nodes.
D. Configure proper routing from data sites to the witness across the WAN.
E. Stretch L2 traffic from WAN to both data sites.
正解：A,B
質問 5：
Reference the exhibit:
Which two statements are accurate considering the state shown In the exhibit? (Choose two.)
A. This vSAN cluster may experience problems with vSAN performance statistics retrieval.
B. This vSAN cluster may exhibit signs of a network partition.
C. The problematic host should be configured to start NTP automatically and connect to the same NTP server as other hosts.
D. The problematic host will partition thus loosing connectivity from the vSAN cluster.
E. The problematic host will experience erratic 10 performance If NTP settings are not corrected.
正解：A,E
質問 6：
Which Kubernetes information is exposed in the vSphere Client to help a vSAN administrator filter Container Volumes based on their usage?
A. Pod name
B. StatefulSet
C. StorageClass
D. Labels
正解：C
質問 7：
Which should be verified before enabling de duplication and compression?
A. All hosts are in maintenance mode.
B. Adequate space is available.
C. Autoclaim mode is enabled.
D. Ensure disk groups are balanced.
正解：B
質問 8：
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.)
A. Performance Service - Stats DB Object - object health - green
B. Data - vSAN Object Health - Reduced availability with no rebuild
C. Performance Service - Stats DB Object - object exists - green
D. Performance Service - Stats DB Object - object health - red
E. Data - vSAN Object Health - Healthy
正解：B,D
Nakamura -
いい成績で5V0-21.20試験に合格しました。私は今後是非引き続き5V0-21.20学習教材を利用します。