GATE CS 2019 Set 1 — Question 26
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Computer Networks → Application Layer → SMTP, POP3, IMAP
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Question
Which one of the following protocol pairs can be used to send and retrieve e-mails (in that order)?
Correct answer
(B) SMTP, POP3
Solution
SMTP (Simple Mail Transfer Protocol) is used for sending emails (push protocol). POP3 (Post Office Protocol version 3) or IMAP (Internet Message Access Protocol) are used for retrieving emails (pull protocols).Therefore, the correct pair for sending and retrieving is SMTP and POP3.
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