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
单项选择题 What does the command show | compare rollback 1 display?（）
单项选择题 You have been assigned the 66.96.130.0/24 network and need to segment ito at least 60 subnets. Which network mask meets this requirement?（）
单项选择题 What is a route filter?（）
