FREE VMware Certified Professional 2V0-21.20 Certification Question and Answers

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A virtual machine called "VM-A" has a Distributed Resource Scheduler (DRS) score of 25%, as seen by the administrator. What does this rating mean?

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The Distributed Resource Scheduler (DRS) score of 25% for a virtual machine (VM) named "VM-A" indicates a relatively low level of resource contention.
The DRS score is a metric used by VMware vSphere to assess the resource demands and contention of virtual machines within a cluster. It represents the level of resource utilization and contention relative to the configured resource allocation for the VM.
A DRS score of 25% suggests that VM-A is currently utilizing a small portion of its allocated resources and is experiencing minimal contention. The lower the DRS score, the lower the resource contention and the more available resources are for the virtual machine.
In this case, with a DRS score of 25%, it indicates that VM-A has sufficient resources available and is not heavily competing with other virtual machines for resources. However, it's worth noting that the DRS score is just one factor to consider when assessing resource contention. It's important to monitor the performance and resource utilization of VM-A over time to ensure it continues to meet its performance requirements.

A VMware Certificate Authority is set up by an IT Department to issue certificates to its ESXi hosts. Upon logging into vCenter Server, an administrator discovers certain ESXi hosts have expired certificates.
How could the administrator update the certificates that the ESXi hosts were given by the VMware Certificate Authority?

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By disconnecting and reconnecting the ESXi hosts to vCenter Server, the administrator triggers a certificate renewal process. When the hosts reconnect, they request new certificates from the VMware Certificate Authority, which then issues and assigns them the updated certificates. This ensures that the ESXi hosts have valid and non-expired certificates for secure communication within the vSphere environment.

What vSphere feature helps to ensure that a shared datastore doesn't have just one virtual machine using up all the resources?

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VMware vSphere Storage I/O Control (SIOC) is a feature that helps prevent a single virtual machine (VM) from consuming all available resources on a shared datastore. SIOC monitors and regulates storage I/O (Input/Output) to ensure fair allocation of resources among multiple VMs accessing the same data store.
By implementing vSphere Storage I/O Control, you can prevent a single VM from monopolizing the storage I/O resources on a shared datastore, promoting fair resource allocation and maintaining performance levels for all VMs.

Which cluster characteristic makes sure that the virtual machines in a cluster have access to the computational resources they need?

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VMware Distributed Resource Scheduler (DRS) is a feature that helps ensure the compute resource requirements of virtual machines (VMs) in a cluster are satisfied. DRS automatically balances the workload and optimizes resource utilization across the hosts in a cluster.
By utilizing the DRS feature, administrators can achieve better resource utilization, improved performance, and increased availability of VMs in a cluster. DRS helps ensure that the compute resource requirements of VMs are met by dynamically balancing workloads across hosts in a way that optimizes resource usage and avoids resource shortages or bottlenecks.

In order to configure vCenter Server High Availability using the vSphere Client, which two actions would an administrator take?

Please select 2 correct answers

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When configuring vCenter Server High Availability (vCenter HA) using the vSphere Client, an administrator would complete the following steps:
1. Indicate that the Passive and Witness nodes have been manually created: In this step, the administrator would specify that the Passive and Witness nodes have already been created manually. This means that the administrator has already deployed and configured the Passive and Witness nodes as separate vCenter Server instances.
2. Choose the data replication network for the Active, Passive, and Witness nodes: In this step, the administrator would select the network that will be used for data replication between the Active, Passive, and Witness nodes. The data replication network is a dedicated network used for synchronizing data between the nodes to ensure consistency in the event of a failover.
The administrator would need to configure the network settings, including IP addresses, subnets, VLANs, or any other relevant network parameters for the data replication network.
By completing these steps, the administrator establishes the foundation for vCenter HA, which provides high availability and automatic failover capabilities for the vCenter Server. The Active node is responsible for handling vCenter Server operations, while the Passive node acts as a synchronized backup. The Witness node acts as a tiebreaker in case of a network partition scenario.

It is the responsibility of the administrator to determine which virtual machines (VMs) can be moved to new servers without requiring any changes to the vSphere environment.
Which VM setup would make it possible to move virtual machines to new servers using vSphere vMotion?

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A clustered virtual machine disk (VMDK) is a type of virtual disk configuration that allows for the creation of shared virtual disks within a virtual machine (VM). It is primarily used in VMware vSphere environments to enable features like fault tolerance and high availability.
With a clustered VMDK, multiple virtual machines can concurrently access and operate on the same virtual disk file. This shared access allows for enhanced redundancy and availability of critical applications.

To reflect a recent manual configuration change on a single host in a cluster, an administrator must update the host profile.
In order to update the host profile with the current ESXi host setup, which option would the administrator choose

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To update a host profile with the current ESXi host configuration after a manual configuration change on a single host in a cluster, the administrator should use the "Copy Configuration from Host" option. This allows the administrator to copy the settings from the specific host and apply them to the host profile.
By using the "Copy Configuration from Host" option, the administrator can update the host profile to reflect the manual configuration changes made on a specific ESXi host in the cluster. This ensures consistency across hosts in the cluster and simplifies the management and configuration of the vSphere environment.

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