Which statement describes the function of the LNS in a L2TP environment?（）
- A、It initiates both the PPP session and the tunnel.
- B、It initiates the PPP session and terminates the tunnel.
- C、It terminates the PPP session and initiates the tunnel.
- D、It terminates the PPP session and terminates the tunnel.
正确答案:D
答案解析:有
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