You work as a network technician at Certkiller .com. Please study the exhibit carefully. The exhibit is an example of which technology being implemented？（） 
- A、Spanning-tree
- B、802.1Q
- C、VLANs
- D、PAT
- E、QoS
正确答案:D
答案解析:有
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思科认证考试
You work as a network technician at Certkiller .com. Please study the exhibit carefully. The exhibit is an example of which technology being implemented？（）
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