关于域名系统(DNS),说法错误的是
A.DNS服务器按层次结构进行组织
B.每个域名服务器只存储了部分域名信息
C.DNS服务器的管辖范围以“域”为单位
D.实现将域名映射为IP地址的过程称为域名解析
正确答案是C
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