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The VMware HCI Master Specialist exam validates a candidate's ability to deploy and manage a software-defined storage solution with VMware vSAN. The VMware Certified Master Specialist - HCI 2020 badge validates an earner's ability to deploy and manage a software-defined storage solution with VMware vSAN. Badge earners have an understanding of vSAN architecture, features and use cases, and interoperability with VMware vSphere.

The Master Specialist HCI exam (5V0-21.20), which leads to Master Specialist - HCI 2020 certification, is a 55 item exam with a passing score of 300, using a scaled method. Candidates are given an appointment time of 105 minutes, which includes five-minute seating time and adequate time to complete the exam for non-native English speakers. Actual exam time is 100 minutes.

Section 1 – Architecture and Technologies

Section 2 – Products and Solutions

Section 3 – Planning and Designing

Section 4 – Installing, Configuring, and Setup

Section 5 – Performance-tuning, Optimization, and Upgrades

Section 6 – Troubleshooting and Repairing

Section 7 – Administrative and Operational Task

A. Shut down the host.

B. Replace the physical drive.

C. Add the new disk to the disk group.

D. Remove the disk from the disk group.

A. The object tree will have to be rebuilt when the policy is applied.

B. The policy can't be applied as there are not enough nodes to comply with the policy.

C. This policy will require additional transitional space, until all objects are recreated.

D. vSAN policies can only be applied to entire VMs.

E. The policy will result is size reduction and only will require 1.5x space instead of 2x.

A. vSphere version

B. geographical distance

C. latency between sites

D. bandwidth between sites

E. number of objects

A. Allow Reduced Redundancy

B. Ensure Accessibility

C. No Data Migration

D. Full Data Migration

A. a 5ms RTT or less is required between the data sites.

B. PIM is required for stretched vSAN clusters.

C. A Stretched Layer 2 network is required at the vSAN data sites and at the witness site.

D. The vSAN data network must communicate with the vSAN witness host.

E. A Stretched Cluster can use Layer 2 or Layer 3 communication for the vSAN network.

A. 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.

B. 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.

C. 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.

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.