A VM class in VMware vSphere with Tanzu specifies the CPU, memory, and resource reservations for a VM10. vSphere with Tanzu offers several preconfigured VM classes which you can use as is, edit, or delete. You can also create custom VM classes in your vCenter Server instance and it will be available to all Supervisor Clusters and the namespaces created in these clusters11.
When you create or edit a VM class, you can configure the following attributes:
Name: A unique DNS compliant name that identifies the VM class.
vCPU Count: The number of virtual CPUs (vCPUs) for a VM. This is a VM hardware configuration.
CPU Resource Reservation: The guaranteed minimum CPU resource allocation for a VM. This value is expressed in percentage (%).
Memory: The memory configured for a VM in MB, GB, or TB. This is a VM hardware configuration.
Memory Resource Reservation: The guaranteed minimum memory resource allocation for a VM. This value is expressed in percentage (%).
Storage: The storage configured for a VM in MB, GB, or TB. This is a VM hardware configuration.
The other options are incorrect because:
Network is not an attribute that can be configured in a VM class. Network configuration is done at the namespace level by using network policies12.
Operating system is not an attribute that can be configured in a VM class. Operating system configuration is done at the image level by using content libraries.
PCI devices are not an attribute that can be configured in a VM class. PCI devices are not supported by vSphere with Tanzu.
References: VM Classes, Create a Custom VM Class, Network Policies, [Content Libraries]
