Application Layer

From amongst the TCP-IP Layers, the fifth Layer is the Application Layer.

  • The most commonly used Application Layer protocol is HTTP.

  • TCP/IP Application Layer provides services between the Computer's Web browser & the Web Server with the help of HTTP.

  • HTTP was built to get a Web page from a Web Server for a Web Browser creating the same layer interaction.

  • If however the page is lost in between then Transport Layer's TCP provides us that Mechanism for the re-transmission of the lost pages thereby providing Adjacent Layer interaction.

Reference:

CCNA 200-301 OCG, Volume 1, Pg. 19 - Wendell Odom .

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