When testing a CAT5 cable, the technician notices that pin A is open. However, the cable stillworks fine. Which of the following describes how this is possible?()
- A、The cable was tested for 100Base-TX.
- B、The cable is a 1000BaseT cable.
- C、The switch uses link aggregation,
- D、The switch was setup to use MDIX
正确答案:A
答案解析:有
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