单选题End-to-end QoS is maintained in the Cisco WLAN deployment model by utilizing what parameter in lieu of 802.1p？（）A IP precedenceB type of service （ToS）C class of service （CoS）D differentiated services code point （DSCP）
单选题
End-to-end QoS is maintained in the Cisco WLAN deployment model by utilizing what parameter in lieu of 802.1p？（）
A
IP precedence
B
type of service （ToS）
C
class of service （CoS）
D
differentiated services code point （DSCP）
参考解析
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