Which of the following is not a characteristic of Virtualization?

• A. Isolation
• B. Efficiency
• C. Network Storage
• D. Scalability

Answer: (C)

Isolation, efficiency, and scalability are all fundamental characteristics of virtualization. Isolation means each virtual machine operates in its own separated environment, so the activities of one VM don’t interfere with others. Efficiency comes from consolidating multiple workloads onto fewer physical hosts, improving resource utilization and reducing hardware needs. Scalability enables rapid provisioning and adjustment of resources or addition of new virtual machines to meet demand without adding physical servers. Network storage, while commonly used in virtualized setups to hold VM disks and data, isn’t a defining trait of virtualization itself—the technology is about abstracting and pooling compute, memory, and I/O resources, with storage location (local or networked) being a deployment choice rather than a core property.