单项选择题
A.Cisco Internetwork Operating System (IOS) Firewall
B.Cisco Secure Access Control Server (ACS)
C.Cisco Firewall Services Module (FWSM)
D.Cisco Private Internet Exchange (PIX) Firewall
单项选择题 What is the Cisco collaboration per-person licensing option that simplifies purchasing and provides customers with maximum flexibility?（）
多项选择题 Network management saves time and money by automating which two tasks? （）
多项选择题 Which three challenges have been created by the move toward Virtualization in the data center? （）