计算机网络概述
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一. 底子知识（相识即可）
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总体难度不大
更倾向于背诵
注意标红的字
题型比力固定
背诵好核心考点的内容
重视真题
真题的重复度是比力高的
25分全部拿下
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二. 计算机网络性能指标
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注意这里是比特每秒，不是字节每秒
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三. 计算机网络体系布局（重点）
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背一下
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可以以红绿灯来明白
红绿灯
红绿黄
时间
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明白影象
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照旧要去考虑的，但是能不能考虑完是别的一回事
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四.OSI RM和TCP/IP模型（背）
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网络层是核心层
网络层是纯软件
以路由器为核心去建立一整套转发机制
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在明白的底子上
TCP/IP
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点到点就是主机到主机
端到端就是端口到端口
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只有TCP是可靠的
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