问题
单项选择题
虚拟局域网可以将网络结点按工作性质与需要划分为若干个( )。
A．物理网络
B．逻辑工作组
C．端口映射表
D．端口号/套接字映射表
答案
参考答案：B
解析： 虚拟局域网建立在交换技术的基础上，将网络上的结点按工作性质与需求划分成若干个“逻辑工作组”，一个工作组就是一个虚拟网络。
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虚拟局域网可以将网络结点按工作性质与需要划分为若干个( )。
A．物理网络
B．逻辑工作组
C．端口映射表
D．端口号/套接字映射表
参考答案：B
解析： 虚拟局域网建立在交换技术的基础上，将网络上的结点按工作性质与需求划分成若干个“逻辑工作组”，一个工作组就是一个虚拟网络。
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| After I had spent a week-with my English family, I 1 began to understand their English a little better. It's very different from what I learned at school! Students in my group are from different cities of Britain and their dialects (方言) are 2 too! Some of their accents (方言) are quite strong 3 they also have their own words and expressions. But it's not the 4 that's different and surprising. Before I came to England I had thought that fish and chips were eaten every day. That's quite 5 ! I get rather mad now when I hear all the foolish words about typical (传统的) English food. I had expected to 6 "London fog". Do you remember our texts 7 it? We had no idea that most of this "thick fog" disappeared many years ago when people stopped using coal in their homes. But the idea to speak about weather was very 8 . The weather in London is really changeable. What is ordinary for all British is that they follow traditions. Probably Britain has more 9 signs of its past than many other countries. And people have always been 10 of having ancient buildings in capitals, big cities and the countryside. | ||
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