单项选择题
A.The transmitted signal from the AP arrives at the client at slightly different times resulting inphase shifting
B.Multipath interference can be solved by using dual antennas
C.If signal 2 is close to 360 degrees out of phase with signal 1， the result is essentially zero signalor a dead spot in the WLAN
D.Multipath interference is less of an issue when using a DSSS technology because multipath isfrequency selective
E.If signal 1 is in phase with signal 2， the result is essentially zero signal or a dead spot in theWLAN
F.None of the other alternatives apply
单项选择题 Exhibit： You work as a network technician. Please study the exhibit carefully. In this wireless network， theLAP （lightweight access point） attempts to register to a WLC （Wireless LAN Controller）. What kindof message is transmitted？（）
单项选择题 WhichstatementbestdescribesCiscosupervisorengineredundancyusingStatefulSwitchover？（）
多项选择题 WhichtwocharacteristicsapplytoCiscoCatalyst6500SeriesSwitchsupervisorredundancyusingNSF？（）
