多项选择题
A. Reboot the device
B. Run the recovery script
C. Reset the root password
D. Reset the user passwords
E. Load factory-default configuration
单项选择题 What are the usable host on the 96.6.128.0/19 network?（）
多项选择题 Which two statements are true regarding trace options on Junos devices?（）
单项选择题 You must segement your internal 192.168.1.0/24 network into a minimun of 12 subnet, each containing a minimun of 12 hosts. Which network mask do you use?（）