Which of the following devices sets the framing type on a T1 circuit？（）
- A、Transceiver
- B、Gateway Modem
- C、Router
- D、CSU/DSU
正确答案:D
答案解析:有
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CompTIA认证考试
CompTIA认证考试
Which of the following devices sets the framing type on a T1 circuit？（）
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