单项选择题
Your network administrator has asked you to view the real-time interface usage on ge-0/0/0, Which command whould be used?（）
A. monitor interface ge0/0/0 B. traceoptions interface ge-0/0/0 C. debug interface ge0/0/0 D. monitor usage ge-0/0/0
多项选择题 Which two statements are correct about Layer 2 broadcast frames?（）
多项选择题 What are three physical interface properties?（）
多项选择题 Which two commands allow you to return to a previous verision of software on the device?（）
