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关于掌腱膜的描述,错误的是
1. What control-plane and data-plane mechanisms areneeded to provide a QoS guarantee in the Internet?
2. WFQ (weighted air queuing) vs. WRR (weighted roundrobin)? (Compare their complexity and scalability.)
3. Why is RED (Random Early Discard) better than FIFO(First-In First-Out), especially or real-time traf c?
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