单项选择题
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
多项选择题 Which three of these are important when determining NAS Server scaling? （）
单项选择题 Which of these is true of a Layer 3 out-of-band NAS deployment?（）
单项选择题 One of your customers wishes to use the NAS to perform DHCP functions and does not currently have a Layer 3 gateway in its production network. Which gateway mode is appropriate for this customer?（）