GATE 2011 CS (CS1) – Question 14

Computer Networks · Application Layer: DNS and HTTP · 1 mark · Multiple choice

Match email activities to application protocols: m₁ sends from mail client to mail server; m₂ downloads from mailbox server to mail client; m₃ checks email in a browser.

m₁ HTTP,m₂ SMTP,m₃ POP
m₁ SMTP,m₂ FTP,m₃ HTTP
m₁ SMTP,m₂ POP,m₃ HTTP
m₁ POP,m₂ SMTP,m₃ IMAP

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Show answer and explanation

Correct answer: (C) m₁ SMTP,m₂ POP,m₃ HTTP

Explanation

SMTP submits mail to the server; POP retrieves mailbox messages; browser webmail uses HTTP for the browser-facing interaction. Therefore m₁ SMTP,m₂ POP,m₃ HTTP, C. Server-side mail transfer may still use SMTP behind webmail.

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