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Module 1: Introduction to Operating Systems

20242m

What does a virtual machine do?
(i) Manages only hardware devices
(ii) Replaces the operating system
(iii) Acts as a real machine but is implemented in software
(iv) Removes the need for file systems

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Answer: (iii) Acts as a real machine but is implemented in software

VM virtualizes CPU, memory, devices via hypervisor, presenting illusion of dedicated hardware to guest OS. Does not replace OS or remove file systems.

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