(75) is a TCP/IP application service that converts user-friendly names to IP address.

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问题 (75) is a TCP/IP application service that converts user-friendly names to IP address.

选项 A、ARP
B、RARP
C、WWW
D、DNS

答案D

解析 DNS是TCP/IP的一个应用服务,将用户域名转换为IP地址。
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