Question
Download Solution PDFWhich of the following is NOT a protocol used in Electronic mail?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Option 1) ICMP.
Key Points
- ICMP stands for Internet Control Message Protocol.
- It is not used for email communication.
- ICMP is primarily used by network devices to send error messages and operational information (e.g.,
pingcommand). - It helps diagnose network connectivity issues but has no role in transferring or retrieving emails.
Additional Information
- IMAP (Internet Message Access Protocol): ✔️ Used to retrieve emails from a mail server while keeping them stored on the server.
- POP (Post Office Protocol): ✔️ Also used to retrieve emails from a mail server, but typically downloads and removes them from the server.
- SMTP (Simple Mail Transfer Protocol): ✔️ Used for sending emails from a client to a server or between servers.
Conclusion: ICMP is a network diagnostic protocol and is not involved in email transmission or retrieval, making it the correct answer.
Last updated on Nov 25, 2024
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