How is attenuation measured？（）

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.

How should the transmit power on an access point and client each be set during a site survey？（）

What does a Cisco Unified Wireless IP Phone 7921G deployment require（）？

After the site installation is complete， you should verify the mobility of the VoWLAN device whilewalking the site on an active phone call. Which Cisco WLC or Cisco WCS command is mostbeneficial in determining roaming efficiency？（）

The Cisco Aironet 1140 Series Access Point draws 12.95 W at the power source. However， whenusing a long Ethernet cable， the device can draw up to how much additional wattage？（）

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

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

Which statement about active and passive surveys is incorrect？（）

A design requires 100 access points with high channel bandwidth and disabled lower data rates.How are the data rates set on the Cisco WLC and Cisco WCS？（）