Computer Networks Lecture 6: Electronic Mail and Domain Name System
16 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the main responsibility of the Simple Mail Transfer Protocol (SMTP) in the context of electronic mail?

  • Composing and editing mail messages
  • Managing the mailbox of the user
  • Reading incoming mail messages
  • Reliably transferring email messages between mail servers (correct)

    • Which port does SMTP typically use for the transfer of email messages?

  • Port 443
  • Port 80
  • Port 25 (correct)
  • Port 110

    • What is the main role of a user agent in the context of electronic mail?

  • Reliably transferring email messages between mail servers
  • Managing the mailbox of the user
  • Storing outgoing (to be sent) mail messages
  • Composing, editing, and reading mail messages (correct)

    • Which component contains all the messages of a user in the electronic mail process?

    <p>Mailbox</p> Signup and view all the answers

    In the context of electronic mail, what is the primary function of a mail server?

    <p>Managing the mailbox of the user</p> Signup and view all the answers

    What type of transfer occurs when sending and receiving emails on the same mail server?

    <p>Direct transfer</p> Signup and view all the answers

    What is the primary purpose of the SMTP protocol?

    <p>Exchanging email messages between mail servers</p> Signup and view all the answers

    In the context of SMTP messages, what is represented by commands written in 7-bit ASCII format?

    <p>Status code</p> Signup and view all the answers

    Which protocol is primarily used for retrieving emails from the server?

    <p>Post Office Protocol (POP)</p> Signup and view all the answers

    What happens during step 3 of the SMTP message exchange process?

    <p>TCP connection is established with Bob's mail server</p> Signup and view all the answers

    Which type of protocol is HTTP primarily considered to be?

    <p>Pull protocol</p> Signup and view all the answers

    What is the role of user agent in the context of SMTP?

    <p>Composing and sending emails to the mail server</p> Signup and view all the answers

    Which protocol allows the user to organize messages in folders and keeps user state across sessions?

    <p>IMAP</p> Signup and view all the answers

    What differentiates SMTP from HTTP in terms of port usage?

    <p>SMTP uses port 25, while HTTP uses port 80</p> Signup and view all the answers

    What differentiates POP from IMAP in terms of message storage?

    <p>POP keeps all messages in one place at the server, while IMAP allows users to organize messages in folders</p> Signup and view all the answers

    What represents the end of an SMTP message in terms of formatting?

    <p>Carriage Return/Line Feed (CRLF)</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser