What term describes running a guest operating system inside another operating system?

What term describes running a guest operating system inside another operating system?

• A. Virtual memory
• B. Virtual switch
• C. VM
• D. Virtual PBX

Answer: (C)

Running a guest operating system inside another is virtualization, creating a separate, isolated computer environment called a virtual machine. The guest OS runs as if it had its own hardware, with a hypervisor assigning CPU, memory, and I/O resources. The term that fits this scenario is VM. Other terms refer to different ideas: virtual memory handles how a process’ memory addresses map to physical RAM, a virtual switch is a software-based network switch inside a virtualized setup, and a virtual PBX is a phone system, not an OS hosting mechanism.

Running a guest operating system inside another is virtualization, creating a separate, isolated computer environment called a virtual machine. The guest OS runs as if it had its own hardware, with a hypervisor assigning CPU, memory, and I/O resources. The term that fits this scenario is VM. Other terms refer to different ideas: virtual memory handles how a process’ memory addresses map to physical RAM, a virtual switch is a software-based network switch inside a virtualized setup, and a virtual PBX is a phone system, not an OS hosting mechanism.