On corporate network, hosts on the same VLAN can communicate with each other, but they are unable to communicate with hosts on d

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问题 On corporate network, hosts on the same VLAN can communicate with each other, but they are unable to communicate with hosts on different VLANs． What is needed to allow communication between the VLANs?

选项 A、 a router with subinterfaces configured on the physical interface that is connected to the switch
B、 a router with an IP address on the physical interface connected to the switch
C、 a switch with an access link that is configured between the switches
D、 a switch with a trunk link that is configured between the switches

答案A

解析在一个公司网络中，同vlan之间的主机可以互相访问，但是不能和其他vlan中的主机通讯，问你怎么样才能可以和其他vlan中的主机通讯？
考点分析：这道题考的是不同vlan间的通信。不同vlan间的通讯有两种实现方法，一种是通过单臂路由，另一种是通过三层交换机。通过单臂路由的方法就是在路由的接口上创建多个子接口来实现vlan的交互

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On corporate network, hosts on the same VLAN can communicate with each other, but they are unable to communicate with hosts on d

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