How many virtualization technologies are there?

How many virtualization technologies are there?

• A. 3
• B. 4
• C. 5
• D. 6

Answer: (C)

Five primary areas define virtualization technologies. Each area abstracts or isolates a different resource, and together they cover the main ways organizations deploy virtualization. Hardware virtualization creates separate computing environments on one physical server using a hypervisor, enabling multiple virtual machines with their own operating systems. OS-level virtualization, such as containers, isolates applications at the operating system kernel level while sharing the host. Network virtualization overlays virtual networks on top of physical infrastructure, enabling flexible, software-defined networking. Storage virtualization pools and abstracts physical storage devices, presenting virtualized storage resources to systems and applications. Application virtualization runs applications in isolated environments so they don’t depend on the local OS configuration. Because these five domains capture the main kinds of virtualization used in typical IT setups, the count is five. Note that some discussions include additional specialized forms, but these five are the core categories you’ll encounter in standard classifications.

Five primary areas define virtualization technologies. Each area abstracts or isolates a different resource, and together they cover the main ways organizations deploy virtualization. Hardware virtualization creates separate computing environments on one physical server using a hypervisor, enabling multiple virtual machines with their own operating systems. OS-level virtualization, such as containers, isolates applications at the operating system kernel level while sharing the host. Network virtualization overlays virtual networks on top of physical infrastructure, enabling flexible, software-defined networking. Storage virtualization pools and abstracts physical storage devices, presenting virtualized storage resources to systems and applications. Application virtualization runs applications in isolated environments so they don’t depend on the local OS configuration. Because these five domains capture the main kinds of virtualization used in typical IT setups, the count is five. Note that some discussions include additional specialized forms, but these five are the core categories you’ll encounter in standard classifications.