By default, which PPP mechanism does the ERX Edge Router use to monitor the session for a PPP over ATM client?（）
- A、ping
- B、hello
- C、get request
- D、echo request
正确答案:D
答案解析:有
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By default, which PPP mechanism does the ERX Edge Router use to monitor the session for a PPP over ATM client?（）
微信扫一扫手机做题