The virtual systems.

虚拟系统。

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Simplify the creation of test environments by using virtual systems.

通过使用虚拟系统简化测试环境的创建。

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In this way, the hypervisor makes virtual systems more flexible than physical systems.

通过这种方式，虚拟监管系统使得虚拟机系统要比物理系统更加灵活。

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This can be extended to virtual systems as well.

FORBES: Teach Your Boss To Speak Security: "Separation Of Duties"

Though the personal preference of the security officer might be that virtual systems are not used, that security officer must recognize that there will always be risk associated with meeting the business objectives.

FORBES: Teach Your Boss to Speak Security: Economy of Mechanism

This issue is not unique to virtual systems.

FORBES: Teach Your Boss To Speak Security: "Separation Of Duties"