不定项选择题 4.  Which network topology is in use when every network has a direct VPN connection to every other network? This topology provides any—to—any communication and provides the most optimal direct path for network traffic. 拓扑结构判断：每个网络通过VPN与其他网络直接相连，这种拓扑能实现所有网络之间的通信，并提供最佳的数据传输路径。