Which of the following descriptions about virtualization-related concepts is wrong?

Question

Options

• AGuest Machine: virtual machine
• BGuest OS: virtual machine operating system
• CHost Machine: machine
• DHost OS: virtualization software layer

• A
  5% (2)
• B
  8% (3)
• C
  15% (6)
• D
  72% (28)

Explanation

Option D is wrong because the Host OS is the operating system installed on the physical machine (e.g., Windows or Linux on your laptop), not the virtualization software layer. The virtualization software layer is properly called a hypervisor (such as VMware, VirtualBox, or Hyper-V), which is a distinct component that sits on top of or alongside the Host OS to manage virtual machines.

Options A, B, and C are all correct: a Guest Machine is indeed a virtual machine (the simulated computer), the Guest OS is the operating system running inside that virtual machine, and the Host Machine is the physical hardware running everything.

Memory tip: Think of "host" as the physical home - the Host Machine is the house, the Host OS is the house's own operating system, and the "guests" (Guest Machine/Guest OS) are the virtual visitors living inside it. The virtualization software (hypervisor) is like the landlord managing those guests - it's separate from the host's own OS.

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