[Sep-2021] 5V0-21.20 Pre-Exam Practice Tests | Exam Questions and Answers for Master Specialist HCI 2020 Study Guide
VMware HCI Master Specialist Certification Sample Questions
NEW QUESTION 36
Which two are requirements for Kubernetes cluster virtual machines when leveraging vSphere Cloud Native Storage (CNS)? (Choose two.)
- A. set the disk.EnableUUID advanced setting to TRUE
- B. Set the Disk Mode to Independent
- C. virtual machine hardware version 15 or higher
- D. configure UEFI firmware
- E. minimum of 4 vCPUs per node
Answer: A,D
NEW QUESTION 37
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. Data - vSAN Object Health - Healthy
- B. Performance Service - Stats DB Object - object health - green
- C. Performance Service - Stats DB Object - object exists - green
- D. Performance Service - Stats DB Object - object health - red
- E. Data - vSAN Object Health - Reduced availability with no rebuild
Answer: D,E
NEW QUESTION 38
When designing a vSAN Cluster, which three should be considered when sizing a vSAN datastore? (Choose three.) D18912E1457D5D1DDCBD40AB3BF70D5D
- A. cache disks with 10% of the Disk Group
- B. Storage Policy or Policies to be used
- C. On-Disk Format overheard
- D. endurance level of capacity disk used
- E. vSAN Slack Space
- F. capacity device queue depth
Answer: B,E,F
NEW QUESTION 39
Refer to the exhibit.
An administrator is managing a 4-node, hybrid vSAN cluster. One of the hosts in the cluster went offline.
Referencing the information displayed in the section of the vSAN UI, what is the current state of this cluster?
- A. Objects will be resynchronized when the Object Repair Timer expires.
- B. Resync Throttling has caused data resynchronization scheduling.
- C. Metadata resynchronization is scheduled to occur every 60 minutes.
- D. Offline host reconnected to the cluster and all objects are synchronized.
Answer: C
NEW QUESTION 40
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 host level using ESXCLI commands
- D. at the object level using storage policies
Answer: D
NEW QUESTION 41
Which two statements are true about enabling deduplication and compression on an All-Flash vSAN cluster with data? (Choose two.)
- A. This requires data evacuation and disk format upgrade of all the disk groups.
- B. Deduplication and Compression cannot be enabled on an existing vSAN datastore with data.
- C. On-disk format version 3.0 or later is required to support deduplication and compression.
- D. Move one host at a time to maintenance mode and enable deduplication and compression.
- E. This can be enabled through storage policies and does not require any data migration.
Answer: A,C
NEW QUESTION 42
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?
- A. vSAN Master node
- B. ToR switches
- C. core switch
- D. NICs on each host in Rack 2
Answer: D
NEW QUESTION 43
A 3-node All-Flash vSAN cluster has this configuration:
* One disk group per host
* All disk groups have identical make & model disks of an 800GB NVMe SSD cache and 2x 4TB SAS SSDs each An administrator has been tasked with expanding storage capacity by adding one additional disk group with this configuration:
1.6TB SAS SSD cache and 1x 4TB SAS SSDs
Assuming all the disks are compliant with the vSAN HCL, which is true?
- A. The additional disk group will generate an 'Advanced vSAN Configuration in sync' health check warning.
- B. The additional disk group would work and be fully supported by VMware support.
- C. The additional disk group would make this cluster an unsupported configuration.
- D. The additional disk group would not be possible as vSAN would not allow it.
Answer: C
NEW QUESTION 44
Refer to the exhibit.
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. Configure proper routing from data sites to the witness across the WAN.
- B. Reconfigure WAN link to support an MTU of 9000.
- C. Reconfigure the VLAN of the witness traffic to be identical to data nodes.
- D. Stretch L2 traffic from WAN to both data sites.
- E. Reduce the MTU from 9000 to 1500 on all vSAN VMkernel interfaces.
Answer: B,E
Explanation:
Explanation/Reference: https://kb.vmware.com/s/article/2141733
NEW QUESTION 45
Which should be verified before enabling de duplication and compression?
- A. All hosts are in maintenance mode.
- B. Autoclaim mode is enabled.
- C. Ensure disk groups are balanced.
- D. Adequate space is available.
Answer: D
NEW QUESTION 46
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?
- A. None - stretched cluster
- B. Dual site mirronng
- C. None - standard cluster
- D. None - keep data on Preferred
Answer: D
NEW QUESTION 47
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 PowerCU command:
Set-VMHost -VMHost "esxi-hoat01.corp.local" -State "Maintenance"
What is the default behavior?
- A. 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.
- B. 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.
- C. 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.
- D. Virtual machines will be live migrated to another host not in maintenance mode and storage objects will not migrate regardless of policy and state.
Answer: B
NEW QUESTION 48
Reference the exhibit.
A university campus has a site topology illustrated in the exhibit. Adjacent connected buildings are connected with a single 40gb layer 3 network with a RTT of 0.6ms as depicted by each line. An architect wants to configure a fault domain in each building.
What would the architect need change in order to implement a fully supported vSAN Cluster?
- A. Enable a single Layer 2 network across all buildings for vSAN connectivity.
- B. Add an additional link to the existing adjacent links to make it redundant.
- C. Enable IPv6 networks across all buildings for vSAN connectivity.
- D. Decrease the existing RTT between the existing links by 0.1ms or more.
Answer: B
NEW QUESTION 49
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-5 (Erasure coding) 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-1 (Mirroring) to FTT=0 No data redundancy
- D. change FTT=1 with RAID-5 (Erasure coding) to FTT=1 with RAID-1 (Mirroring)
Answer: B
NEW QUESTION 50
A company has a new production wide requirement to use Data At Rest Encryption for compliance reasons.
An administrator is evaluating the impact of making this change to the vSAN datastores in production.
Which two statements are true when enabling Data At Rest Encryption on an existing vSAN datastore?
(Choose two.)
- A. The raw capacity of the vSAN datastore will be temporarily reduced while encryption is occurring.
- B. Only metadata changes will occur and there will be no data evacuation.
- C. The vSAN storage policies must be modified to enable vSAN Data At Rest Encryption.
- D. The encryption process will start immediately.
- E. The process can be scheduled to start at a later time.
Answer: A,C
NEW QUESTION 51
A 4-node vSAN cluster has a single disk group per host. An administrator wants to increase the capacity of the vSAN datastore by adding a second disk group to each host in the cluster. The newer drives intended for the second disk group are certified and in compliance with VMware Compatibility Guide (VCG). However, the newer devices procured are of a different make and model than the existing disk group composition.
Considering the scenario, which statement is true?
- A. The Cache Tier devices need to be the same make and model as other disk groups.
- B. The Capacity Tier devices need to be the same make and model as other disk groups.
- C. This configuration is supported, however a separate controller is mandatory for each disk vendor.
D18912E1457D5D1DDCBD40AB3BF70D5D - D. This configuration is supported, however performance may vary across disk groups.
Answer: B
NEW QUESTION 52
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.)
- A. Configure CoS or DSCP with high priority tag at the VDS and equivalent in the physical network.
- B. Enable network resource pool at the VDS level to prioritize vSAN traffic
- C. Configure multiple vSAN VMkernel interfaces to load balance across multiple uplinks.
- D. Enable jumbo frames for vSAN VMkernel ports and configure LACP for optimal load balancing.
- E. Enable Network I/O Control and allocate higher shares for vSAN traffic.
Answer: D,E
NEW QUESTION 53
The vSAN Health Check 'Hosts disconnected from vCenter Server' is reporting an error state for one host in the vSAN Cluster. All other health checks in the Network category are in a green state.
Which VMware recommended remediation task should be taken by the administrator?
- A. Right-click the affected host and click Connection > Connect.
- B. Restart the vSAN Management Daemon.
- C. Right-click the affected host and click Remove from Inventory.
- D. Configure a vSAN-enabled VMkernel port on the affected host.
Answer: B
NEW QUESTION 54
A solution architect is considering a vSAN Cluster with two hosts per rack. The design should be configured to minimize the potential exposure to rack failure with the capacity to automatically restore compliance with the configured vSAN storage policy.
Which design consideration would minimize potential risks?
- A. Create four fault domains and failures to tolerate set to one with Erasure Coding.
- B. Create four fault domains and failures to tolerate set to two with Erasure Coding.
- C. Create four fault domains and failures to tolerate set to two with mirroring.
- D. Create four fault domains and failures to tolerate set to one with mirroring.
Answer: D
NEW QUESTION 55
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