You review the Failed Attempts logs on an AAA server and find： "unknown network access servererror."
Which failure could produce this error？（）

单项选择题During the installation of the Cisco WCS version 4.0， an error occurs. Where would you look for theinstallation log， in order to learn more about this error？（）

A.at the root of the installation drive
B.in the Cisco WCS installation directory
C.on the desktop of the server
D.in the Cisco WCS\Logs directory

单项选择题You are configuring an RF group of controllers that coordinate Radio Resource Managementcalculations. What is the maximum number of WLAN controllers that you can add？（）

A.17
B.20
C.12
D.24

多项选择题WhenconfiguringaWLANcontrollerforavoiceapplicationusingCisco7920wirelessIPphones，which twogeneralcontrolsettingsshouldyouselect？（）

A.Multicast on
B.Aggressive Load Balancing off
C. Multicast off
D.AP Fallback on
E.Aggressive Load Balancing on
F.AP Fallback off

单项选择题You are installing a Cisco 4402 Series Wireless LAN Controller. Which type of interface should you use on the controller’s distribution port？（）

A.1000BASE-SX SFP
B.10/100/1000 Mbps RJ45
C.10/100 Mbps RJ45
D.10000BASE-SX

单项选择题By default， on the WLAN controller for a voice application using Cisco 7921 wireless IP phones. What is the percentage of RF bandwidth that can be dedicated to the phones？（）

A.75 percent
B.85 percent
C.56 percent
D.55 percent