多项选择题
A.determine a minimum bandwidth guarantee
B.determine interfaces to which to apply policy
C.assign priorities to the class
D.configure access control lists
多项选择题 WhichthreestatementsaboutclassificationmarkingoftrafficatLayer2aretrue？（）
单项选择题 Whichcodecstandardrequiresabitrateof64kbpstomaintainameanopinionscoreof4.1？（）
单项选择题 Refer to the exhibit. What mechanism should be used to increase the bandwidth availability and optimize the link usage throughout the network for voice traffic？（）