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 drop
ceiling 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.
A.DAS area
B.plenum area
C.extended area
D.RF special area
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A.show {802.11a 802.11b} 2roam statistics
B.show client roam-history
C.show client tsm 802.11a/b/g
D.show client detail
E.show client ap-roam-history
A.average signal strength that is greater than -67 dBi
B.cell overlap of 15 to 20 percent
C.uneven wireless coverage
D.absence of coverage holes
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
A.omnidirectional
B.patch
C.Yagi
D.sector
E.parabolic dish
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
最新試題
When conducting a wireless voice site survey， which two sizing considerations exist for thecoverage cell？（）
Which two Cisco antennas provide better isolation from RF sources that might be located behindthe antennas？（）
When planning for voice deployments with the Cisco Unified Wireless IP Phone 7921G handset in amultifloor building with a WLAN that operates at an 11 MB/s data rate， how many decibelsreferenced to 1 milliwatt of same-channel separation are recommended between floors？（）
When planning for VoWLAN capacity during a site survey， how many simultaneous calls can beestimated per 5 GHz channel？（）
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？（）
What does a Cisco Unified Wireless IP Phone 7921G deployment require（）？
Which class of Cisco access points operate under IEEE 802.3af power？（）
When using a lightning arrestor， connect which type of ground wire to a good earth ground？（）
When surveying for VoWLAN， which power level should you base the access point coverage designon？（）
In which three frequency bands does the Cisco Spectrum Expert Wi-Fi tool perform spectrumanalysis？ （）