若一台服务器只开放了25和110两个端口，那么这台服务器可以提供（ ）服务。
- A.E-Mail
- B.WEB
- C.DNS
- D.FTP
正确答案及解析
正确答案
解析
25端口为SMTP（SimpleMailTransferProtocol，简单邮件传输协议）服务器所开放，主要用于发送邮件。
110端口为POP3（PostOfficeProtocol-Version3，邮件协议版本3）负责邮件收取。
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