多项选择题
A. SSID broadcast prevention
B. Improved mutual authentication
C. Improved encryption through AES
D. Improved protection against sniffing initialization vectors
E. RF jamming prevention
单项选择题 AcustomerisdeployingawirelesscorefeaturesetusingautonomousaccesspointsandrequiresLayer2roaming.Whatisarequirementwhendeployingthissolution？（）
单项选择题 YouareabouttoupgradearouterwithanewerlOSversion，butyouwouldliketocheckforknownbugsfirst.Whichtoolwillallowyoutodothismosteasily？（）
单项选择题 WhatisthebenefitofusingtheCiscoEasyVPNServerfeaturealongwiththeCiscosoftwareVPNclientforimplementingremote-accessVPNs？（）