单项选择题
A.more access points than a data network B.fewer access points than a data network C.less SNR than a data network D.specific relative access point placement
WhichantennagenerallyhasthenarrowestfirstFresnelzoneinb...
单项选择题Which antenna generally has the narrowest first Fresnel zone in both the horizontal and verticalplanes？（）
A.omnidirectional B.patch C.Yagi D.sector E.parabolic dish
WhichtwomethodscanbeusedtopreventorreduceRFIfromcolocat...
多项选择题Which two methods can be used to prevent or reduce RFI from colocated directional antennas（）
A.Alternate polarization between colocated antennas B.Cross-polarize antennas between endpoints C.Install an RF-shielded box around the antennas D.Increase the distance between the antennas
Ciscorecommendsadecibelreferencedto1milliwattsignalleve...
单项选择题Cisco recommends a decibel referenced to 1 milliwatt signal level for the coverage cell edge at thepredetermined data rate that is needed to support the VoWLAN device and call capacityrequirements. What is that signal level value for Cisco Unified Wireless IP Phones 7920， 7921G， and7925G？（）
A.-65 dBm B.-67 dBm C.-69 dBm D.-70 dBm
