MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -In computing, the Internet Message Access Protocol (IMAP) is an Internet standard protocol used by email clients to retrieve email messages from a mail server over a TCP/IP connection.

Detailed explanation-2: -POP3 vs IMAP POP3 downloads emails from a server to a single computer, making those emails only accessible on that specific computer. IMAP stores emails on a server and then syncs them across multiple devices.

Detailed explanation-3: -POP3 downloads the mail first and then allows its users to read them. You can partially read your emails before downloading them in the case of IMAP. POP3 only allows a single device at a time to access the emails. IMAP allows multiple devices at a time to access and read the available mails.

Detailed explanation-4: -There are two primary protocols used by email client applications to retrieve email from mail servers: the Post Office Protocol (POP) and the Internet Message Access Protocol (IMAP).

Detailed explanation-5: -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.