Which of the following should be used to check a serial port for functionality?（）
- A、Loopback plug
- B、Toner probe
- C、Multimeter
- D、Cable tester
正确答案:A
答案解析:有
微信扫一扫手机做题
多做题，通过考试没问题！
CompTIA认证考试
CompTIA认证考试
Which of the following should be used to check a serial port for functionality?（）
微信扫一扫手机做题