多项选择题
A. high scalability
B. the design supports a layered security model
C. firewall addressing does not need to change
D. IPsec decrypted traffic is inspected by the firewall
E. there is a centralized point for logging and content inspection
单项选择题 What will an Easy VPN hardware client require in order to insert its protected network address when it connects using network extension mode?（）
单项选择题 What is the recommended practice when considering VPN termination and firewall placement?（）
单项选择题 An organization hires a contractor who only needs access to email and a group calendar. They do not need administrator access to the computer. Which VPN model is the most appropriate?（）