单项选择题
Which type of Web filtering by default builds a cache of server actions associated with each URL it has checked?（）
A. Websense Redirect Web filtering B. integrated Web filtering C. local Web filtering D. enhanced Web filtering
多项选择题 Which three security concerns can be addressed by a tunnel mode IPsec VPN secured by AH?（） (Choose three.)
单项选择题 Which configuration keyword ensures that all in-progress sessions are re-evaluated upon committing a security policy change?（）
