单项选择题
Which J-Web tab do you use to add licenses to the device?（）
A. "Configure" B. "Troubleshoot" C. "Monitor" D. "Maintain"
单项选择题 How do you write the current candidate configuration to the permanent storage media?（）
单项选择题 What does the command show | compare rollback 1 display?（）
单项选择题 Using the command, user@router# load override latest.conf, where in the file system will the latest.conf be located?（）
