单项选择题 Whenconfiguringawirelesslancontrollerforqos，what802.1ptagshouldbeappliedforvideoapplications？（）

单项选择题 Inthewirelessadvancedfeaturesetusinglightweightaccesspoints，avirtualinterfaceisusedwhensupportingwhichofthefollowingfeatures？（）

单项选择题 Vlans have been enabled on an autonomous access point. in order for clients associating to vlans other than the native vlan to receive an ip address. Which of the following must be configured？（）