D: Encapsulation is the property of virtualization that allows whole virtual machines to be saved as files that can be moved or copied like any other file.
A virtual machine is a tightly isolated computing software resource that operates the same as a physical computer. A virtual machine has the ability to deploy and run applications and programs. Virtual machines contain a CPU, RAM, hard disk, and network interface card just like a physical computer, making the virtual machines incredibly portable and easy to manage. This is what is known as the encapsulation property of virtual machines.
The encapsulation permits to save the entire virtual machines as files in order to copy them form a location to another just like any other software files.
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