Virtualization is defined as which of the following?

Virtualization is defined as which of the following?

• A. A type of physical server hardware.
• B. A software layer that speeds up memory access.
• C. A method for reducing network latency.
• D. A host computer installed with a hypervisor that can be used to install and manage multiple guest OSs or VMs.

Answer: (D)

Virtualization means creating virtual versions of computing resources by using a hypervisor on a host computer to run and manage multiple guest operating systems or virtual machines. This setup allows several isolated OS environments to share the same physical hardware, enabling better resource utilization and easier management.

The statement about a host computer installed with a hypervisor that can install and manage multiple guest operating systems captures the essence of virtualization because it describes the core mechanism: the hypervisor abstracts the hardware and allocates it to separate VMs, each with its own OS. This is why virtualization is about running multiple virtual machines on one physical host.

The other descriptions don’t define virtualization. It’s not simply a type of physical server hardware, nor is it primarily a mechanism to speed up memory access, nor a method to reduce network latency.