多项选择题
What are two purposes of a forwarding class?（）
A. to identify traffic that should be dropped B. to classify traffic C. to identify traffic that should receive common treatment D. to assign traffic to output queues
单项选择题 Which class-of-service component allows you to define the bandwidth allocated to different traffic types?（）
单项选择题 Random early detection (RED) is associated with which class of service component?（）
多项选择题 What are three benefits of class of service?（）
