Which statement describes virtualization software's role?

Which statement describes virtualization software's role?

• A. It allows multiple virtual machines by running on a single physical computer.
• B. It speeds up processor performance through virtualization.
• C. It eliminates the need for software to run virtual machines.
• D. It replaces the host operating system with a virtual one.

Answer: (A)

The main idea is that virtualization software creates separate, isolated computing environments on one physical machine by dividing its hardware into multiple virtual machines. This layer—often called a hypervisor—allocates CPU, memory, storage, and networking to each VM, so you can run different operating systems or software stacks independently on the same physical hardware. That setup is what makes it possible to consolidate servers, test across environments, or run legacy systems without needing extra physical computers. This is why the best description is that it enables multiple virtual machines on a single computer. The other statements aren’t accurate descriptions of virtualization’s role: virtualization doesn’t inherently speed up processor performance and can add some overhead; you still need virtualization software to run virtual machines; and while some hypervisors can run directly on hardware (without a host OS), that nuance isn’t captured by the statement, which describes the general function of enabling multiple VMs on one machine.

The main idea is that virtualization software creates separate, isolated computing environments on one physical machine by dividing its hardware into multiple virtual machines. This layer—often called a hypervisor—allocates CPU, memory, storage, and networking to each VM, so you can run different operating systems or software stacks independently on the same physical hardware. That setup is what makes it possible to consolidate servers, test across environments, or run legacy systems without needing extra physical computers.

This is why the best description is that it enables multiple virtual machines on a single computer. The other statements aren’t accurate descriptions of virtualization’s role: virtualization doesn’t inherently speed up processor performance and can add some overhead; you still need virtualization software to run virtual machines; and while some hypervisors can run directly on hardware (without a host OS), that nuance isn’t captured by the statement, which describes the general function of enabling multiple VMs on one machine.