Which two Cisco antennas provide better isolation from RF sources that might be located behindthe antennas？（）

多项选择题WhichthreedevicetypesareidentifiedbyCiscoSpectrumExpertWi-FifindinganAvgPulseDurationparameter？（）

A.Bluetooth
B.frequency hopping
C.microwave oven
D.802.11b client card
E.802.11b access point

多项选择题InwhichthreefrequencybandsdoestheCiscoSpectrumExpertWi-Fitoolperformspectrumanalysis？（）

A.ISM 2.4 GHz
B.ISM 900 MHz
C.ISM 5 GHz
D.public safety 4.9 GHz
E.GSM 1.9 GHz

单项选择题WhichcanNOTbeselectedforsupportedservicesinCiscoWCSPlanningTool？（）

A.data/coverage
B.location with Monitor Mode access points
C.demand
D.high density

单项选择题ForanactiveCiscoUnifiedWirelessIPPhone7921G5GHzsitesurvey，whatarethemostappropriateclienttestsettingstousewiththeAirMagnetsitesurveytool？（）

A.100 mW， 24 Mb/s
B.100 mW， 18 Mb/s
C.25 mW， 18 Mb/s
D.3.2 mW， 54 Mb/s

单项选择题Whichstatementregardingthesite-surveyprocessiscorrect？（）

A.In a multifloor building， the access point layout from the survey of one floor can be directly applied to the remaining floors
B.Access points can be installed in the same place on every floor， without worrying about co-channelinterference
C.You can survey with a Cisco AIR-ANT5959 in a plenum environment
D.Identify all hazardous and restricted areas that might require extra or special survey and installationwork