12.6.5 Check Your Understanding – Email and Messaging Answers

Same for: 16.7.5 Check Your Understanding – Email and Messaging


1. This protocol is used by a client to send email to a mail server.

  • POP
  • SMTP
  • IMAP
  • HTTP

Explanation: Email clients connect to SMTP servers over port 25 to send email. POP and IMAP are used by clients to receive email. HTTP is used between web browsers and web servers.

2. Which is a feature of IMAP?

  • It uploads email messages to a server.
  • It listens passively on port 110 for client requests.
  • It downloads a copy of email messages leaving the original on the server.

Explanation: IMAP is a protocol for clients to retrieve copies of email messages from an IMAP server. The original messages remain on the server until manually deleted.

3. True or False? Text messaging is only available on a smartphone?

  • true
  • false

Explanation: False. Text messaging applications are available for a wide variety of operating systems and devices.

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