By default, which of the following ports would a network need to have opened to allow for thetransmission of incoming and outgoing email?（） (Select TWO).
- A、21
- B、25
- C、80
- D、110
- E、123
正确答案:B,D
答案解析:有
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CompTIA认证考试
CompTIA认证考试
By default, which of the following ports would a network need to have opened to allow for thetransmission of incoming and outgoing email?（） (Select TWO).
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