1V0-21.20

A. Data center is correct.
Data center is not even an option when creating a new VM in vCenter.
When creating a new VM in vCenter the steps are:
1. Select a creation type
2. Select a name and folder
3. Select a compute resource
4. Select storage
5. Select compatibility
6. Select a guest OS
7. Customize hardware
8. Ready to complete

D is correct. At the screen where it says "Select a name and folder" you HAVE to choose a DataCenter. There is no way to continue if not. If you want to expand the tree on that DataCenter only then will you see the folders available in the cluster, but you DO NOT have to specify one. Therefore Folder selection is Optional.

As Gemini said :
D. Folder is the optional selection when deploying a new virtual machine in the vSphere Client.
Here's a breakdown of why the others are mandatory:
 * Data center: This is the top-level container for all objects in vSphere. A virtual machine must belong to a data center.
 * Compute resource: This can be a host, cluster, or resource pool. It specifies where the virtual machine will run.
 * Guest OS: You need to select the operating system that will be installed on the virtual machine.
While a folder is useful for organizing virtual machines, it's not strictly required for deployment. You can deploy a virtual machine directly in a data center, compute resource, or even at the root level if desired.
Therefore, folder is the optional selection.

Selected Answer: D
Folders are just a way to help us keep things organized. Not required.

Answer couldn't be A : i test this in a prod infra and you must select a datacenter to create a VM

Selected Answer: D
A Datacenter is always required when creating a VM. However, no Folder needs to be chosen. Folders are just a way to help us keep things organized. Not required.

Guest OS is definitely not the correct answer. How can it be marked as the correct answer on here.

Actually I just confirmed. I did not have to specify a folder. Kind of a trick question as I did not have to specify a Data Center either.

A is the correct answer. Just went through the process in our dev environment.

VM could no be deployed in a data center instead cluster in data center

Selected Answer: D
You have to choose a Data Center. In the second step in vSphere, you have to choose the Data Center and it's a must. You can go ahead without specifying the folder in that Data Center.

Selected Answer: D
The answer is in fact D. Took the test and got a perfect score and this question came up;)

Optional) If you’ve selected the Customize the operating system option in the previous step, select the customization specification:

Selected Answer: A
A. Data center is correct.

Selected Answer: D
D. Folder is optional when deploying a new virtual machine in the vSphere Client. 
The other options, A. Data center, B. Compute resource, and C. Guest OS are required and must be specified in order to deploy a new virtual machine in the vSphere Client. 
The data center is used to specify the location of the virtual machine, the compute resource is used to specify the physical resources that the virtual machine will use, and the guest OS is used to specify the operating system that will run inside the virtual machine. 
The folder is used to organize virtual machines in the vSphere Client, but it is not a required component of the deployment process.

Selected Answer: A
A should be the correct answer, you don't need to choose data center for deploying VM.

https://support.us.ovhcloud.com/hc/en-us/articles/360017372019-How-to-Deploy-a-VM-in-the-vSphere-Web-Client#:~:text=Deploying%20a%20VM%20in%20the%20vSphere%20Web%20Client,-A%20new%20VM&text=Right%2Dclick%20on%20your%20data,files%20by%20connecting%20via%20SFTP.

Selected Answer: A
it's A the right answer

Answer is A
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vm_admin.doc/GUID-39D19B2B-A11C-42AE-AC80-DDA8682AB42C.html

Selected Answer: D
Folder is not an option

Right-click any inventory object that is a valid parent object of a virtual machine, such as a data center, folder, cluster, resource pool, or host, and select New Virtual Machine > New Virtual Machine.
On the Select a creation type page, select Deploy from template and click Next.
On the Select a template page, select the template that you want to use.
(Optional) Select the Customize the operating system check box to customize the guest operating system of the virtual machine.
(Optional) Select the Customize this virtual machine's hardware check box to customize the virtual hardware of the virtual machine.
(Optional) Select the Power On Virtual Machine after creation check box to power on the virtual machine after creation.
ANS-C

based on the question, it states a "New VM" does not state from template as your link is showing. if it is new through vSphere 7 the DataCenter is not selected

Which selection is optional when deploying a new virtual machine in the vSphere Client?

For myself, i learned on LinkedIn Learning. With tutor & demo videos

Whre can obtaind the study material?
Who can share the marerial please?

Selected Answer: C
C. Network bandwidth on the host.

vSphere DRS is a feature of VMware vSphere that automatically balances resource utilization across multiple hosts in a cluster. It evaluates various factors to determine the optimal placement of virtual machines. While factors such as storage bandwidth, network usage, and disk usage by the virtual machine may be considered, the network bandwidth on the host is a key parameter that vSphere DRS takes into account.

Selected Answer: C
C - DRS works with hosts, not VMs, and does not consider Storage.

https://blogs.vmware.com/vsphere/2020/05/vsphere-7-a-closer-look-at-the-vm-drs-score.html

```
Network utilization cost – If a VM has a high networking bandwidth demand, and the host’s network usage is beyond a threshold, we charge a cost to the VM. The cost increases linearly with the increase in host network utilization.
```

Selected Answer: C
When it comes to vSphere Distributed Resource Scheduler (DRS), it primarily focuses on CPU and memory usage (And network utilization) when making decisions about placing a virtual machine on a host. It evaluates the available resources on each host to ensure that the virtual machine is placed on a host with sufficient resources to meet its performance requirements.

On the other hand, Storage DRS is responsible for making decisions based on disk usage and capacity. It helps balance the storage load by considering factors like datastore latency and space utilization. So, the distinction between the two services is essential.

None of the provided options are directly related to what vSphere DRS primarily considers when placing a virtual machine on a host. DRS focuses on CPU and memory resources, while Storage DRS handles disk usage and capacity. The specific configuration of the VMware cluster will determine how these resources are allocated and managed. The best answer in this case then, is C. (Network Utilization)

Selected Answer: C
I guess C answer is correct one.

Host Network Saturation Threshold
As mentioned earlier, DRS will avoid a network loaded host during load balancing decisions, only if its network
utilization is beyond a certain threshold. This threshold is set to 80% by default. So, unless the host network
utilization is above 80%, DRS considers the host to be a good candidate in terms of network resource
availability.
If a host’s network utilization is at or above the saturation threshold, DRS considers it to be network saturated. If
all the hosts in the cluster are network saturated, DRS will prefer not to migrate VMs with network load, since
migrating network loaded VMs to an already network saturated host would result in further degradation of VM
performance. When DRS cannot migrate VMs due to this behavior, this can sometimes result in an imbalanced
cluster

C
In vSphere 6.5, DRS considers the utilization of host network adapters during initial placement and load balancing, but it does not balance the network load. Instead, its goal is to ensure that the target host has sufficient available network resources.

Please disregard the previous answer!!!

D. Disk usage by the virtual machine.

vSphere Distributed Resource Scheduler (DRS) is a feature in VMware vSphere that automates the process of placing virtual machines on hosts in a vSphere cluster. The goal of DRS is to balance resource utilization across all hosts in a cluster to ensure that no single host becomes overcommitted or underutilized.

One of the factors that DRS considers when making placement decisions is disk usage by the virtual machine. This is because disk I/O is often the most critical resource for virtual machines, and high disk utilization can indicate that a virtual machine is experiencing storage performance issues. By considering disk usage, DRS can ensure that virtual machines receive the storage resources they need to operate efficiently.

Selected Answer: B
vSphere Distributed Resource Scheduler (DRS) considers multiple factors when making decisions about which host to place a virtual machine. The primary factors that DRS considers include:

 Resource utilization: DRS checks the CPU, memory, and network utilization of all hosts in a cluster to determine which host has the most resources available.

 Affinity rules: If a virtual machine has an affinity or anti-affinity rule defined, DRS will take this into consideration when deciding where to place the virtual machine.

 Host preferences: If a host has a preference for a particular virtual machine, DRS will take this into consideration when deciding where to place the virtual machine.

Based on the options given, the answer closest to what DRS considers is "Resource utilization", which includes CPU, memory, and network utilization.

So the answer is "A" is not correct, "B" is part of resource utilization, "C" is not considered by DRS and "D" is not considered either.

A virtual machine’s DRS score is based upon its CPU, memory, and network efficiencies.
C is correct

C is the correct answer.
D might not be answer because if VM reaches 19GB/20GB, still no use moving VM from one host to another.

Selected Answer: D
VM must place on share datastore.

Which piece of information does vSphere DRS consider when making decisions about which host to place a virtual machine?

Selected Answer: DE
Two vSphere features that help address an organization’s business availability challenges are vSphere High Availability (HA) and vSphere Fault Tolerance1.

vSphere HA provides the foundation for a highly available environment by monitoring the virtual machines and the hosts upon which they run2. It can automatically restart virtual machines affected by host failures on other hosts that have spare capacity2.

vSphere Fault Tolerance provides continuous availability for applications in the event of server failures by creating a live shadow instance of a virtual machine that is always up-to-date with the primary virtual machine1.

Which two vSphere features help address an organization's business availability challenges? (Choose two.)

A. vSphere Fault Tolerance
vSphere Fault Tolerance (FT) is designed to provide continuous availability for a single virtual machine. It creates a secondary instance of the virtual machine on a different host, and if the primary host fails, the secondary instance takes over immediately with no downtime. This ensures that users experience uninterrupted service.

Selected Answer: A
A - Only FT provides "continuous availability"

Please disregard the previous answer!

A. vSphere Fault Tolerance.

vSphere Fault Tolerance (FT) is a feature in VMware vSphere that provides continuous availability for virtual machines. It protects virtual machines from host failures by creating a live secondary copy of the virtual machine that runs on another host in the same cluster. In the event of a host failure, the secondary copy takes over and continues to run, ensuring that there is no loss of data or connectivity. vSphere FT provides a high level of data protection and allows users to continue working even if a host fails, making it an ideal solution for critical applications that require high availability.

Selected Answer: D
The vSphere feature that provides continuous availability and protects virtual machines from host failures with no loss of data or connectivity is vSphere High Availability (HA).

vSphere HA monitors the health of virtual machines and the hosts they are running on. If a host fails, vSphere HA restarts the virtual machines on other hosts within the same cluster, providing fast recovery from host failures.

So, the correct answer is "D" - vSphere HA.

vSphere Fault Tolerance (FT) is another feature that provides high availability for virtual machines, but it is different from vSphere HA. vSphere FT provides continuous availability by creating and maintaining a duplicate, or secondary, virtual machine that is identical to the primary virtual machine.

vSphere vMotion allows you to move a running virtual machine from one host to another with no downtime.

Enhanced vMotion Compatibility (EVC) enables vMotion between hosts with different CPU generations, as long as they have compatible virtualization features.

Selected Answer: A
Fault tolerance ,prefers to keep the identical copy of Vm to other esxi host in the cluster ,which makes this option tolerant to host failures.

Selected Answer: A
A. is the correct answer because vSphere Fault Tolerance is the only feature that will provide continuous availability by keeping an identical copy of the running VM at all times.

Which vSphere feature provides continuous availability, allowing users to protect any virtual machine from a host failure with no loss of data or connectivity?

Selected Answer: A
A - Others easily eliminated.

Selected Answer: A
A. Disk Shares.

In vSphere, the administrator can prioritize disk access for virtual machines by setting disk shares. Disk shares allow the administrator to set a relative priority for virtual machine disk access to the physical storage resources. The virtual machine with a higher number of disk shares is allocated a greater proportion of available I/O operations. This way, the administrator can ensure that the most critical virtual machines receive the necessary disk resources.

A vSphere administrator has multiple virtual machines running on a VMFS datastore.
Which setting prioritizes the disk access for the virtual machines?

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