多项选择题
Which three characteristics of the traffic flow are taken into consideration when the QoS-for-VPNs feature （QoS pre-classify） provides packet classification and applies appropriate QoS service on tunnel interfaces？（）
A.IP precedence bits B.DSCP bits C.original port numbers D.DE bits E.source IP address F.destination IP address
多项选择题 WhataretwocomponentsoftheCiscoAutonomousWLANsolution？（）
单项选择题 Whatisthemostcommoncauseofnetworkcongestion？（）
多项选择题 WhichthreeconfigurationtasksarerequiredtosuccessfullydeployNBARtorecognizeTCPandUDPstatefulprotocols？（）
