單項選擇題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?()

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 


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1.單項選擇題What will cause wireless voice devices to perform poorly?()

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

2.單項選擇題What does a Cisco Unified Wireless IP Phone 7921G deployment require()?

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B.fewer access points than a data network
C.less SNR than a data network
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4.多項選擇題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

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