The domain name system ( DNS ) provides a mechanism for naming resources in Internet.

网域名称系统 ( DNS ) 提供一网际网路资源命名的机制.

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File Transfer Protocol [ FTP ] and Domain Name System [ DNS ] fall into this category.

文件传输协议 [ FTP ] 和域名系统 [ DNS ] 属于这类应用层协议).

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