312-49 · Question #89
P0P3 (Post Office Protocol 3) is a standard protocol for receiving email that deletes mail on the server as soon as the user downloads it. When a message arrives, the POP3 server appends it to the…
The correct answer is B. Port 110. POP3 (Post Office Protocol version 3) is a standard email retrieval protocol that operates on port 110 by default for unencrypted connections. When an email client connects to a POP3 server, it uses TCP port 110 to download messages, after which they are typically deleted from…
Question
P0P3 (Post Office Protocol 3) is a standard protocol for receiving email that deletes mail on the server as soon as the user downloads it. When a message arrives, the POP3 server appends it to the bottom of the recipient's account file, which can be retrieved by the email client at any preferred time. Email client connects to the POP3 server at _______________by default to fetch emails.
Options
- APort 109
- BPort 110
- CPort 115
- DPort 123
How the community answered
(36 responses)- A3% (1)
- B89% (32)
- C3% (1)
- D6% (2)
Explanation
POP3 (Post Office Protocol version 3) is a standard email retrieval protocol that operates on port 110 by default for unencrypted connections. When an email client connects to a POP3 server, it uses TCP port 110 to download messages, after which they are typically deleted from the server. For encrypted POP3 over SSL/TLS, port 995 is used instead. The other options are incorrect: Port 109 was used by the obsolete POP2 protocol, Port 115 is associated with SFTP (Simple File Transfer Protocol), and Port 123 is used by NTP (Network Time Protocol).
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