首页/ 题库 / [单选题]Internet中域名与IP地址之间的翻的答案

Internet中域名与IP地址之间的翻译由()完成。

单选题
2022-04-19 11:19
A、域名服务器
B、代理服务器
C、FTP服务器
D、Web服务器
查看答案

正确答案
A

试题解析
本题考查域名解析的有关概念和知识。在访问Internet时,无论是检索信息还是发送电子邮件,都必须知道对方的Internet地址。地址是用来确定Internet上每一台计算机、每个用户的唯一位置。也就是说,Internet上每一台计算机,每个用户都有唯一的地址来标识它是谁和在何处。Internet上计算机的地址格式主要有两种书写形式:域名格式和IP地址格式。域名格式地址是按名字来描述的,这种地址表示方式易于理解和记忆。实际上,Internet中的主机地址是用IP地址来唯一标识的。一个IP地址可以包括:一个网络ID号,用来标识网络;一个子网络ID号,用来标识网络上的一个子网;另外还有一个主机ID号,用来标识子网络上的一台计算机。这样,通过这个分配给某台计算机的IP地址就可以很快地找到相应的计算机。DNS(域名解析服务器)提供计算机来查询网络地址的数据库。DNS服务器为客户提供存储、查询和搜索其他主机域名和lP地址的服务。主要实现域名与lP地址之间的转换,把域名转换成与其相对应的IP地址,还可以把IP地址反向解析转换成域名,以解决IP地址难以记忆的问题。

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