多项选择题
A. IPS
B. VPN Concentrator
C. ACS server
D. PIX firewall
E. CSA MC
F. DDoS Anomaly Guard and Detector
多项选择题 WhichtwoofthesestatementsbestdescribethebenefitsofWPAv1？（）
单项选择题 AcustomerisdeployingawirelesscorefeaturesetusingautonomousaccesspointsandrequiresLayer2roaming.Whatisarequirementwhendeployingthissolution？（）
单项选择题 YouareabouttoupgradearouterwithanewerlOSversion，butyouwouldliketocheckforknownbugsfirst.Whichtoolwillallowyoutodothismosteasily？（）