单项选择题 One of your customers has decided to deploy location-based services in addition to existing wireless services. The customer requires that the additional access points to be deployed in monitor-only mode. The most likely reason for this requirement is that the customer has which of these existing wireless devices？（）

单项选择题 WhichofthefollowingcommandsonthewirelessinterfaceofaCisco3845IntegratedServicesRouterallowstheSSIDtobroadcast？（）

单项选择题 WhenconfiguringQoSonawirelesscontroller，theper-user，real-timebandwidthcontractisenforcedforwhichofthefollowingprotocols？（）