Which three modes are the operating modes of HDLC? ()
- A、asynchronous response mode (ARM)
- B、normal peer mode (NPM)
- C、asynchronous balanced mode (ABM)
- D、normal response mode (NRM)
- E、asynchronous client mode (ACM)
正确答案:A,C,D
答案解析:有
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Which three modes are the operating modes of HDLC? ()
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