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单项选择题Which of these is a benefit of using Network Admission Control instead of Cisco Identity Based Networking Services？（）

A、 NAC can authenticate using 802.1X and IBNS cannot

B、 NAC can ensure only compliant machines connect and IBNS cannot

C、 NAC can ensure access to the correct network resources and IBNS cannot

D、 NAC can manage user mobility and reduce overhead costs and IBNS cannot

  • B

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