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What are three advantages of VLANs?

admin2019-04-08  10
问题 What are three advantages of VLANs?
选项 A、        VLANs establish broadcast domains in switched networks．
B、        VLANs utilize packet filtering to enhance network security．
C、        VLANs can greatly simplify adding, moving, or changing hosts on the network．
D、        VLANs provide a low-latency internetworking alternative to routed networks．
E、        VLANs allow access to network services based on department, not physical location．
答案A,C,E
解析 A：VLAN在交换网络中建立广播域，正确。
B：利用VLAN的数据包过滤，增强网络的安全性。错误，没有这个特性。
C：VLAN可以大大简化添加，移动或更改网络上的主机。正确。
D：提供低延迟互联网络替代路由网络。错误
E：vlan允许基于逻辑划分的网络访问，不是物理位置。正确。
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