What information does the help reference command provide?()
- A、A brief description of commands and their default values
- B、The serial number and version number of the device used to open a support case with JTAC
- C、A list of all the active hardware alarms on the device
- D、A display of the current configuration while in operational mode
正确答案:A
答案解析:有

微信扫一扫手机做题