单项选择题

You are troubleshooting a problem with a cisco 7920 wireless ip phone that is causing the phone to drop calls. the problem appears to be roaming bandwidth issuE. in order to verify what kind of issue it is， you decide to increase the bandwidth reserve for roaming on the wlan controller to maximum.
What level do you set the bandwidth to？（）

A.5 percent
B.15 percent
C.25 percent
D.35 percent

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单项选择题

What is the correct order of steps for upgrading a cisco wcs？（）

A.back up the database， stop the wcs， upgrade the wcs， restore the database， start the wcs
B.stop the wcs， back up the database， upgrade the wcs， restore the database， start the wcs
C.back up the database， stop the wcs， upgrade the wcs， start the wcs， restore the database
D.stop the wcs， back up the database， upgrade the wcs， start the wcs， restore the database

单项选择题

When optimizing a standalone point-to-multipoint bridge installation with eight non-root bridges.
Which of the following rts threshold and cwmin settings would be correct for the non-root bridges？（）

A.rts threshold=4000，cwmin=3
B.rts threshold=1，cwmin=4
C.rts threshold=4000，cwmin=5
D.rts threshold=1，cwmin=5

单项选择题

Which command will enable dhcp debugging on a wlan controller？（）

A.debug dhcp enable
B.debug dhcp status enable
C.debug dhcp packet enable
D.enable debug dhcp packet