以下哪种协议用于用户从邮箱中读出邮件 A ICMP B PPP C SMTP D POP3
时间: 2024-04-05 21:33:25 浏览: 114
D POP3 (Post Office Protocol version 3) 用于用户从邮箱中读出邮件。它是应用层协议,用于电子邮件客户端从远程服务器上获取电子邮件。而 ICMP (Internet Control Message Protocol) 是网络层协议,用于网络设备之间传递控制信息;PPP (Point-to-Point Protocol) 是数据链路层协议,用于在两个网络节点之间建立点对点连接;SMTP (Simple Mail Transfer Protocol) 是应用层协议,用于电子邮件客户端向邮件服务器发送邮件。
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