A user is configuring an email client application and decides to use the TCP/IP suite protocol that will store all messages on the email server so that they can be synchronized across a laptop, a smartphone, and a web email client. This protocol will store the email messages on the email server until the user explicitly deletes them. Which of the following TCP/IP port numbers will the client application typically use while using this protocol to contact the email server?A. 21B. 80C. 110D. 143

D. 143

Explanation:

A server that allows the entire management of an email account through more than one email client such that the clients the messages of the clients are stored on the server pending being deleted by the user, is an IMAP server

The port that the IMAP server listens to is the port number 143, therefore, the client application typically makes use of port 143 while using the TCP/IP protocol to contact the email server

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-ttl

i've had the same problem. i generally just ignore it, as a ton of these "verified answers" are completely wrong.