Based on the above, the port number that POP3 use is known to be called option B. 110.
A port number is known to be a kind of a method or way that is often used to know or identify a given process of which an internet or other network message is known to be sent or forwarded if it arrives at a server.
Note that POP3 uses 110, IMAP make use of port 143, as well as SMTP uses 25.
Therefore, Based on the above, the port number that POP3 use is known to be called option B. 110.
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2.Ronnie is configuring a new iPad to receive email from the corporate email server, which supports POP3. What port number does POP3 use?
A. 25
B. 110
C. 143
D. 443