When surveying for VoWLAN， which power level should you base the access point coverage designon？（）

By how much is a signal’s strength reduced when the signal passes through an object thatintroduces 3 dB of attenuation？（）

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？（）

Which two methods can be used to prevent or reduce RFI from colocated directional antennas（）

When using a lightning arrestor， connect which type of ground wire to a good earth ground？（）

Which three device types are identified by Cisco Spectrum Expert Wi-Fi finding an Avg PulseDuration parameter？（）

Which antenna generally has the narrowest first Fresnel zone in both the horizontal and verticalplanes？（）

According to the following statement， can you tell me which term is described？（）It is the air return for an air conditioned system. In most buildings， the area above a drop ceiling orunder a raised floor is used as the air return （source of air） for the air conditioning. Those dropceiling and raised floors are also where wire is often installed. If wire and cable is installed in a dropceiling or raised floor， it is out of sight. If that cable were burning， it would give off toxic fumes.These would be fed to the rest of the building by the air conditioner. As a result， people could beinjured even though they are a long way from the fire.

In which three frequency bands does the Cisco Spectrum Expert Wi-Fi tool perform spectrumanalysis？ （）

Which format can NOT be imported into Cisco WCS Planning Tool？（）