Which statement best describes virtualization characteristics?

Which statement best describes virtualization characteristics?

• A. It allows pooling of physical resources and isolation of virtual machines
• B. It requires direct DAS storage
• C. It prevents resource sharing
• D. It eliminates networking

Answer: (A)

Virtualization centers on pooling physical resources and keeping virtual machines isolated from each other. A hypervisor abstracts the underlying hardware so multiple VMs can share CPU, memory, storage, and network resources while each VM operates independently with its own guest OS and applications. This setup maximizes hardware utilization and provides fault isolation, so stuff happening in one VM doesn’t spill over to others. That’s why this statement is the best description: it captures both the sharing of hardware resources across many virtual environments and the separation between them that enables safe, independent operation. The other options miss key aspects: virtualization doesn’t require direct DAS storage—it can use various storage backends; it does enable resource sharing rather than preventing it; and it doesn’t eliminate networking—virtual networks are a core part of how VMs communicate.

Virtualization centers on pooling physical resources and keeping virtual machines isolated from each other. A hypervisor abstracts the underlying hardware so multiple VMs can share CPU, memory, storage, and network resources while each VM operates independently with its own guest OS and applications. This setup maximizes hardware utilization and provides fault isolation, so stuff happening in one VM doesn’t spill over to others.

That’s why this statement is the best description: it captures both the sharing of hardware resources across many virtual environments and the separation between them that enables safe, independent operation. The other options miss key aspects: virtualization doesn’t require direct DAS storage—it can use various storage backends; it does enable resource sharing rather than preventing it; and it doesn’t eliminate networking—virtual networks are a core part of how VMs communicate.