以下关于VPN的叙述中,正确的是（）。

2023-09-01

A.VPN通过加密数据保证通过公网传输的信息即使被他人截获也不会泄露
B.VPN指用户自己租用线路，和公共网络物理上完全隔离的、安全的线路
C.VPN不能同时实现信息的认证和对身份的认证
D.VPN通过身份认证实现安全目标，不具数据加密功能

参考答案：A

VPN即虚拟专用网，它是依靠ISP（Internet服务提供商），在公用网络中建立专用的、安全的数据通信通道的技术。

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