单项选择题
Acustomerindicatestheyrunamission-criticalapplicationwhichmarksitspacketsbest-effort(DSCP=0).Howcanyouguaranteedeliveryofthistraffic?()
A.Remarkthetrafficoningressandprioritizeonegress.
B.EnableCEFandNetflow.
C.ConfiguretheMS-WindowsQoSSchedulertoprioritizethistraffic.
D.EnableWRED.