NAC's（Network Access Control）role is to restrict network access to only compliant endpoints and　（1）　users. However, NAC is not a complete LAN　（2）　solution; additional proactive and　（3）　security measures must be implemented. Nevis is the first and only comprehensive LAN security solution that combines deep security processing of every packet at l0Gbps; ensuring a high level of security plus application availability and performance．Nevis integrates NAC as the first line of LAN security　（4）　.In addition to NAC，enterprises need to .implement role-based network access control as well as critical proactive security measures一real-time, multilevel　（5）　inspection and microsecond threat containment.
（1）A、automated 
B、distinguished 
C、authenticated 
D、destructed
（2）A、crisis 
B、security 
C、favorable 
D、excellent
（3）A、constructive 
B、reductive 
C、reactive 
D、productive
（4）A、defense 
B、intrusion 
C、inbreak 
D、protection
（5）A、port 
B、connection 
C、threat 
D、insurance