多项选择题
For delay sensitive traffic， what are the three best ways that are used to prevent packet loss？ （）
A. Compress payload. B. Use header compression. C. Increase link capacity. D. Use random early detection. E. Guarantee bandwidth to fragile flows. F. Implement network-based application recognition.
多项选择题 WhichthreefunctionsareassociatedwithaCiscoUnifiedCallManager？（）
多项选择题 Whichtwocharacteristicsarecommonbetweentrafficpolicingandtrafficshaping？（）
多项选择题 WhichtwoQoSclassificationandmarkingstatementsaretrue？（）
