单项选择题
A. show security utm anti-virus status
B. show security anti-virus database status
C. show security utm anti-virus database
D. show security utm anti-virus update
单项选择题 Which security or functional zone name has special significance to the Junos OS?（）
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?（）
多项选择题 Which three security concerns can be addressed by a tunnel mode IPsec VPN secured by AH?（） (Choose three.)