多项选择题
A. port security
B. fabric binding
C. IVR
D. port tracking
E. FICON
多项选择题 VirtualPortChannels（vPCs）allowlinksthatarephysicallyconnectedtotwodifferentCiscoswitchestoappeartoathirddownstreamdeviceascomingfromasingledeviceandaspartofasingleportchannel.WhichofthefollowingarecomponentsofaVirtualPortChannelsystem？（）
单项选择题 WhatisthedifferencebetweentheEthanalyzerandtheSPANfeatureinCiscoNX-OS？（）
单项选择题 WithCiscoNX-OSonaCiscoNexusplatform，whichcommandshowsmemoryusage，totalprocesses，andCPUstate？（）