220-801 · Question #388
Which of the following protocols would an email client use?
The correct answer is C. POP3. POP3 (Post Office Protocol version 3) is the standard protocol used by email clients to retrieve messages from a mail server.
Question
Which of the following protocols would an email client use?
Options
- AHTTP
- BSNMP
- CPOP3
- DSFTP
How the community answered
(34 responses)- B3% (1)
- C91% (31)
- D6% (2)
Why each option
POP3 (Post Office Protocol version 3) is the standard protocol used by email clients to retrieve messages from a mail server.
HTTP is a web transfer protocol used by browsers to retrieve web pages, not used natively by email clients for mail retrieval.
SNMP (Simple Network Management Protocol) is used to monitor and manage network devices, not for email communication.
POP3 operates on port 110 (or 995 for SSL) and allows an email client to download messages from the server to the local device, typically removing them from the server afterward. It is one of the foundational email retrieval protocols alongside IMAP, and is directly supported by clients like Outlook, Thunderbird, and Apple Mail. The other options serve entirely different networking purposes unrelated to email client operations.
SFTP (Secure File Transfer Protocol) is used for secure file transfers between systems, not for email retrieval.
Concept tested: POP3 email client retrieval protocol
Source: https://learn.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/pop3-and-imap4/pop3-and-imap4
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