单项选择题
A. integrated Web filtering
B. local Web filtering
C. redirect Web filtering
D. content filtering
多项选择题 Which two statements regarding external authentication servers for firewall user authentication are true?（） (Choose two.)
多项选择题 Which two statements are true about hierarchical architecture? （）(Choose two.)
多项选择题 Regarding content filtering, what are two pattern lists that can be configured in the Junos OS? （）(Choose two.)