Q4 Single choice Flag What is an advantage of server virtualization from a maintenance perspective? A Hosts can be powered off with no effect to the virtual machines running on the hosts. B Virtual machines that are powered on but not being accessed, use no CPU or memory resources. C Virtual machines can be non-disruptively relocated to more powerful platforms, if required. D Hosts can be upgraded or replaced non-disruptively to the virtual machines running on the hosts. Correct answer