单项选择题
What is the default session timeout for TCP sessions?（）
A. 1 minute B. 15 minutes C. 30 minutes D. 90 minutes
多项选择题 Which three firewall user authentication objects can be referenced in a security policy? （）(Choose three.)
多项选择题 Which three methods of source NAT does the Junos OS support?（） (Choose three.)
单项选择题 Under which Junos hierarchy level are security policies configured?（）
