单项选择题
What is the default Quality of Service traffic class used by the ERX Edge Router?（）
A. bronze forwarding B. assured forwarding C. expedited forwarding D. best effort forwarding
单项选择题 Which configuration command configures queue buffer allocation on the ERX Edge Router?（）
单项选择题 How many traffic classes are supported on the ERX Edge Router?（）
单项选择题 On which component are RED and WRED managed in the router?（）
