单项选择题
A.To prevent customers from running TDP with the ISP routers
B.To prevent customers from running LDP with the ISP routers
C.To prevent other ISPs from running LDP with the ISP routers
D.To prevent man-in-the-middle attacks
E.To use CBAC to shut down Distributed Denial of Service attacks
F.To use IPS to protect against session-replay attacks
G.None of the above
多项选择题 IPSecVPNisawidely-acknowledgedsolutionforenterprisenetwork.WhichthreeIPsecVPNstatementsaretrue？（）
多项选择题 Study the exhibit carefully. The Cisco IOS IPsec High Availability （IPsec HA） Enhancementsfeature provides an infrastructure for reliable and secure networks to provide transparent availability of the VPN gateways - that is， Cisco IOS Software-based routers. What are the twooptions that are used to provide High Availability IPsec？（）
单项选择题 IPSec VPN is a widely-acknowledged solution for enterprise network. What are the four steps tosetup an IPsec VPN？（）
