1.

Typically the TCP port used by SMTP is _________(a) 25(b) 35(c) 50(d) 15The question was posed to me by my school teacher while I was bunking the class.I want to ask this question from SMTP topic in section Application Layer of Computer Network

Answer»

The CORRECT choice is (a) 25

To explain I would say: The ports 15, 35 and 50 are all UDP ports and SMTP only uses TCP port 25 for reliability.



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