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？（）

A. Virtual Gateway
B. Real-IP Gateway
C. NAT Gateway
D. IP-IP Gateway

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单项选择题

Your MPLS implementation is currently using internal backdoor links. What can you do to minimize the impact of having these links？（）

A. use BGP as the CE-PE routing protocol
B. use OSPF as the CE-PE routing protocol
C. use EIGRP as the CE-PE routing protocol
D. use the SP to redistribute routes as external routes for OSPF and EIGRP
E. use route redistribution at each location to ensure external routes are imported into the IGP

单项选择题

Which of these is true of a Layer 3 out-of-band NAS deployment？（）

A. The NAS acts as a gateway for all Layer 3 traffic.
B. Only the MAC address is used to identify the client device.
C. User traffic remains on the same VLAN for the duration of the connection.
D. After authentication and posture assessment， client traffic no longer passes through the NAS.

多项选择题

Which three of these are important when determining NAS Server scaling？（）

A. interface bandwidth
B. rescan timer interval
C. total number of network devices
D. number of new user authentications per second
E. which operating system is loaded on the client
F. number of checks performed in a posture assessment