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VMware Certified Master Specialist (HCI 2020) 5V0-21.20 is a proctored exam delivered through Pearson VUE. It leads to VMware Certified Master Specialist - HCI 2020 certification, which validates your ability to deploy and manage a software-defined storage solution with VMware vSAN. The holders have an understanding of vSAN architecture, features and use cases, and interoperability with VMware vSphere.
What are the prerequisites of getting Master Specialist HCI 2020 Certification?
Candidates who are planning for VMware Master Specialist HCI 2020 certification, you will:
● Achieved VCP-DCV Certification
● Achieved vSAN Specialist Certification
● Should have one year of experience designing, configuring, managing, and upgrading VMware HCI environments
● Should be familiar with deployment and administration of VMs using Storage Policy-Based Management
● Should have intermediate knowledge and should have completed the VMware vSAN: Deploy and Manage [V6.7] training
Additionally, you need master all the exam topics as below:
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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 vSAN storage policies must be modified to enable vSAN Data At Rest Encryption.
B. Only metadata changes will occur and there will be no data evacuation.
C. The process can be scheduled to start at a later time.
D. The raw capacity of the vSAN datastore will be temporarily reduced while encryption is occurring.
E. The encryption process will start immediately.
Answer: AD
A vSAN administrator is changing the number of stripes in the vSAN policy from 1 to 2 on a 3-node vSAN Cluster.
What is a possible impact of this policy change?
A. Stripes will be placed on separate media, but does not guarantee separate hosts or disk groups.
B. Policy cannot be applied as the cluster does not meet the minimum number of fault domains.
C. The amount of raw capacity required to comply with this policy will double.
D. The amount of raw capacity required to comply with this policy will decrease by half.
Answer: D
Which two must be considered when creating a vSAN solution that will utilize VMware vSphere Replication? (Choose two.)
A. vSAN Encryption cannot be used with vSphere Replication.
B. AES-NI must be enabled prior to using snapshots for replication,
C. Deduplication and compression must be disabled for PIT snapshots,
D. Point-in-time snapshots count towards component limit.
E. Additional read I/O will be generated by vSphere Replication.
Answer: AC
A vSAN disk group contains one cache drive and four capacity drives. A drive that belongs to this disk group has failed. The entire disk group containing the failed drive Is offline.
What are two possible reasons the entire disk group Is offline? (Choose two.)
A. Deduplication and compression is enabled on the cluster.
B. RAID-5/6 (Erase Coding) is one of the failure tolerance methods in use.
C. Two capacity dnves in the disk group are offline.
D. The failed drive is configured as a cache drive for the disk group.
E. Data-at-rest encryption is enabled for the disk group.
Answer: BC
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 multiple vSAN VMkernel interfaces to load balance across multiple uplinks.
B. Enable jumbo frames for vSAN VMkernel ports and configure LACP for optimal load balancing.
C. Enable network resource pool at the VDS level to prioritize vSAN traffic.
D. Configure CoS or DSCP with high priority tag at the VDS and equivalent in the physical network.
E. Enable Network I/O Control and allocate higher shares for vSAN traffic.
Answer: AD
Which should be verified before enabling de duplication and compression?
A. Ensure disk groups are balanced.
B. Adequate space is available.
C. Autoclaim mode is enabled.
D. All hosts are in maintenance mode.
Answer: C
A storage administrator working for a large enterprise is consolidating multiple locations into 2 data centers running on a new HCI platform. vSphere Replication has been used with vSAN to migrate a large amount of data between two separate locations with high latency links. The administrator has been asked to plan the VM migration using vSphere Replication failover. The plan will involve stopping replication, failing the workloads over to the second site, and preparing for the next migration of VMs.
Which two statements are correct in this scenario? (Choose two.)
A. There will be a post migration task to manually cleanup vSAN namespaces at the target data store.
B. VMware Site Recovery Manager is required to perform the failover.
C. When using vSphere Replication and vSAN, only virtual machines that are powered on are automatically replicated.
D. vSphere Replication will automatically run a post-failover clean up task following replication being stopped.
E. vSphere replication does not add additional load to the Storage solution.
Answer: DE
Which is true about vSAN fault domains?
A. A vSAN Stretched cluster has two primary fault domains.
B. A vSAN Stretched Cluster has three primary fault domains.
C. A vSAN Standard Cluster cannot be configured with fewer than 3 fault domains.
D. A 2-node vSAN Cluster has two primary fault domains.
Answer: A
A company has reserved the last Saturday of the month to conduct server maintenance. An administrator is allowed to perform maintenance from 5 AM to 12 PM. During the upcoming maintenance window, the administrator will upgrade the controller driver, controller firmware, and vSphere version.
Environment details:
• vCenter is already at the latest version
• 5 node vSAN cluster
• The VMs are using a mix of RAID-0, RAID-1, and RAID-5 policies
• Each node is storing 20 TBs worth of VMs
Which maintenance mode option will allow an administrator to successfully perform the required upgrades, while ensuring all VMs remain online?
A. Full data migration
B. No Data Migration
C. Ensure Accessibility
D. Admission Control Enabled
Answer: B
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 be live migrated to another host not in maintenance mode and storage objects will not migrate regardless of policy and state.
D. 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.
Answer: C
