找考题网-背景图
单项选择题

A. Easy VPNB. GRE tunnelingC. Virtual Tunnel Interfaces……

In which tunnel-less VPN topology do group members register with a key server in order to receive the security association necessary to communicate with the group?()

A. Easy VPN
B. GRE tunneling
C. Virtual Tunnel Interfaces
D. DynamicMultipoint VPN
E. Group Encrypted Transport VPN

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