INTRODUCTION
PROTOCOL LAYERING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which protocols could be used when using a email client?
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HTTP
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HTTPS
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POP3
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SMTP
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IMAP
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Explanation:
Detailed explanation-1: -An IMAP server typically listens on port number 143. IMAP over SSL/TLS (IMAPS) is assigned the port number 993. Virtually all modern e-mail clients and servers support IMAP, which along with the earlier POP3 (Post Office Protocol) are the two most prevalent standard protocols for email retrieval.
Detailed explanation-2: -The IMAP uses the Transmission Control Protocol (TCP) for communication to ensure the delivery of data and also received in the order. The IMAP4 listens on a well-known port, i.e., port number 143, for an incoming connection request from the IMAP4 client.
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