● NAC’s（Network Access Control ） role is to restrict network access to only compliant endpoints and （71） users. However, NAC is not a complete LAN （72） solution additional proactive and （73） security measures must be implemented. Nevis is the first and only comprehensive LAN security solution that combines deep security processing of every packet at 10Gbps, ensuring a high level of security plus application availability and performance. Nevis integrates NAC as the first line of LAN security （74） . In addition to NAC, enterprises need to implement role-based network access control as well as critical proactive security measures — real-time, multilevel （75） inspection and microsecond threat containment. （71） A. automated B. distinguished C. authenticated D. destructed （72） A. crisis B. security C. favorable D. excellent （73） A. constructive B. reductive C. reactive D. productive （74） A. defense B. intrusion C. inbreak D. protection （75） A. port B. connection C. threat D. insurance