Chapter 10: Application Layer.

Chapter 10: Application Layer.

1. Operation of POP

   • Retrieve e-mail
     • mail is downloaded from the server to the client

2. File Transfer Protocol (FTP)

   • data transfer
     • Client and server

3. Network Applications

   • It affects the amount of work
   • Facilitate communication at work
   • They reduce the time

4. SMTP

   • Network protocol used to send and receive emails (emails).

5. Http and Https

   • GET
     • POST
       • PUT

6. Common P2P applications

   • • eDonkey
       • G2
         • BitTorrent
           • Bitcoin

7. Operation of IMAP

   • Retrieve email messages
     • Users can create a hierarchy of files on the server
       • This file structure is also duplicated in the email client

8. Email protocols

   • Email messages are stored in databases on mail servers
   • method to store
   • ISP offters is email hosting

9. Server message block.

   • Start authenticate and end sessions
     • Control access to files
       • Authorize an application to send or receive messages

10. Domain name service

    • Devices are labeled with IP addresses
    • Describes a method to retrieve e-mail messages

11. Importance of the application layer

    • It offers applications (user or not) the possibility of accessing the services of the other layers and defines the protocols that applications use to exchange data, such as email (POP and SMTP), database managers and file transfer protocols (FTP)