Question
Which of the following protocol pairs can be used to send and retrieve e-mails (in that order)?
Official answer and solution
- Official answer
- B
- From
- Official GATE 2019 answer key
Solution
Identify the standard network protocols used for mail transfer and mail retrieval.
In computer networking:
- Sending mail: Simple Mail Transfer Protocol (SMTP) is the standard push protocol used by mail user agents to send messages to a mail server, and between mail transfer agents across the Internet.
- Retrieving mail: Post Office Protocol version 3 (POP3) and Internet Message Access Protocol (IMAP) are pull protocols used by email clients to retrieve stored messages from a mail server.
Therefore, the protocol pair for sending and retrieving emails in that order is SMTP, POP3.
Final answer
B
The answer is the one in the official GATE answer key. The solution is this site's own explanation.
Source
- Paper
- GATE 2019 Computer Science and Information Technology (CS)
- Question
- 26 of 65, printed as CS Q.16
- Section
- Computer Science and Information Technology
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