单项选择题
Which user authenticaton method is supported by the Junos OS as the last resort alternative?（）
A. TACACS+ B. RADIUS C. local user database D. enable password
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?（）
单项选择题 What represents the binary equivalence of 96?（）
单项选择题 What represents the binary equivalence of 148?（）
