单选题When a non-root user connects to a JUNOS platform and enters a username and password, the user is immediately placed at which level?（）A UNIX shellB user level CLIC configuration modeD operational mode
题目
单选题
When a non-root user connects to a JUNOS platform and enters a username and password, the user is immediately placed at which level?（）
A
UNIX shell
B
user level CLI
C
configuration mode
D
operational mode