Which of the following would be used to lock all of the primary communication equipment of abuilding, including its demarcation point?（）
- A、MTR
- B、MDF
- C、Smart jack
- D、IDF
正确答案:B
答案解析:有
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CompTIA认证考试
CompTIA认证考试
Which of the following would be used to lock all of the primary communication equipment of abuilding, including its demarcation point?（）
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