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单项选择题 You are troubleshooting a problem with a Cisco 7920 wireless IP phone that is causing the phoneto drop calls. The problem appears to be a roaming bandwidth issue. In order to verify what kindof issue it is， you decide to increase the bandwidth reserved for roaming on the WLAN controllerto the maximum. What level do you set the bandwidth to？（）

A、25 percent

B、15 percent

C、5 percent

D、35 percent

  • A

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