Requirements for Installing Guests on a Hypervisor Host

C.

The correct answer is C. Processors that support virtualization.

Virtualization is the technology that enables a single physical server to host multiple virtual machines (VMs) running different operating systems, applications, and workloads. A hypervisor is a software layer that creates and manages these virtual machines, allowing multiple VMs to run on a single physical server without interfering with each other.

To install and run virtual machines on a hypervisor host, the underlying hardware must meet certain requirements. One of the most critical requirements is that the server's processors must support hardware-assisted virtualization, also known as Intel VT-x (for Intel processors) or AMD-V (for AMD processors). This feature allows the hypervisor to create and manage virtual machines efficiently and securely by giving each VM direct access to the physical processor's resources.

Processors with multiple cores or available cache can improve the performance of virtual machines by enabling them to run more tasks in parallel or reducing latency when accessing data from memory. However, these features are not strictly necessary for virtualization and may not be required depending on the workload and the number of virtual machines running on the server.

Hyperthreading is a technology that allows a single processor core to handle multiple threads of execution simultaneously, effectively doubling the number of virtual cores available to the system. While hyperthreading can improve performance in some scenarios, it is not a requirement for virtualization and may not be supported or enabled on all processors.