多项选择题
Interface congestion is causing drops in voice packets and TCP packets. The drops result in jerky speech quality and slower FTP traffic flows. Which two technologies would proactively address the TCP transfer rate and the voice problems？ （）
A. CBWFQ B. LLQ C. traffic shaping D. WRED
多项选择题 Whichthreemethodswouldhelppreventcriticalnetwork-trafficpacketlossonhighspeedserialinterfaces？（）
多项选择题 Whatthreestatementsaretrueaboutthevariousdeploymentsofthe802.1xExtensibleAuthenticationProtocol（EAP）？（）
多项选择题 Whichthreestatementsaboutend-to-enddelayaretrue？（）
