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举例说明域名转换的过程。域名服务器中的高速缓存的作用是什么?

问答题
2022-08-08 18:00
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正确答案

(1)把不方便记忆的IP地址转换为方便记忆的域名地址。例如110.189.108.9-->www.cdutetc.cn;
(2)域名服务器中的高速缓存的作用:可大大减轻根域名服务器的负荷,使因特网上的DNS查询请求和回答报文的数量大为减少。


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