Which DSL encapsulation method requires client software running on the end - user PC that is directly connected to a DSL modem?（）
- A、PPPoA
- B、PPPoE
- C、PPP
- D、L2TP
- E、ATM
正确答案:B
答案解析:有
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Which DSL encapsulation method requires client software running on the end - user PC that is directly connected to a DSL modem?（）
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