多项选择题
Which information would you find using the CLI help function?（）
A. message of the day B. tip of the day C. explanation for specific system log error messages D. explanation for specific traceoptions log messages
单项选择题 Which mode is used to allow only a single person to edit a configuration?（）
多项选择题 Referring to the exhibit, what are two differences between the active and candidate configurations?（）
多项选择题 Which three statements are true regarding the candidate configuration?（）
