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ISRO | ISRO CS 2017 | Question 35
  • Last Updated : 16 Mar, 2018

Consider the set of activities related to e-mail

A : Send an e-mail from a mail client to mail server
B : Download e-mail headers from mail box and retrieve mails from server to a cache
C : Checking e-mail through a web browser

The application level protocol used for each activity in the same sequence is

(A) SMTP, HTTPS, IMAP
(B) SMTP, POP, IMAP
(C) SMTP, IMAP, HTTPS
(D) SMTP, IMAP, POP


Answer: (C)

Explanation: Option (C) is correct.
Simple Mail Transfer Protocol (SMTP) is typically used by user clients for sending mails.
IMAP is an application level protocol that stores email messages on a mail server and allows the end user to view and customize the messages as if they are readily stored on the end user’s device.
Checking mails in web browser is a simple HTTP process
Also see GATE CS 2011 | Question 4


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