Application, Presentation, and Session Layers

FacebookTwitterGoogle+LinkedInEmail
Description
Application Layer - network processes to applications
  • User interface to lower layers
  • Preparation of data for each service
  • End-to-end communication on both sides
  • Software applications reside in it
  • Sends requests and receives reply
  • HTTP (Hyper Text Transfer Protocol)
  • FTP (File transfer protocol)
  • SMTP (Simple Mail Transfer Protocol)
  • POP3 (Post Office transfer Protocol)
  • IMAP (Internet Message Access Protocol)
  • Telnet/SSH (Secure Shell)
  • DNS (Domain Name Server)
  • RTP (Real-time Protocol)
  Presentation Layer
  • Responsible for common representation of data between source and destination
  • Provides transformation of data
  • Supports standardized application interface
  • Coding of data syntax
  • Data encryption/decryption
  • Data compression/decompression
  Session Layer
  • Establishing session
  • Managing session
  • Controlling session
  • Terminating session
  • Making sure the connection is active during session
  • Securing the connection
  • Dialogue synchronization
  • Checking for connection failure
  • Reconnecting if connection cuts off
  • Terminating communication
  • Defining node communication order and timing
  Application, Presentation, and Session
  • Closely connected
  • Related in function
  • Forms application later in TCP/IP
  • Content formatting
  • Preparing for network process
 
Recommended Study Material
Learn on the go.
The app designed for the modern cyber security professional.
Get it on Google Play Get it on the App Store

Our Revolution

We believe Cyber Security training should be free, for everyone, FOREVER. Everyone, everywhere, deserves the OPPORTUNITY to learn, begin and grow a career in this fascinating field. Therefore, Cybrary is a free community where people, companies and training come together to give everyone the ability to collaborate in an open source way that is revolutionizing the cyber security educational experience.

Cybrary On The Go

Get the Cybrary app for Android for online and offline viewing of our lessons.

Get it on Google Play
 

Support Cybrary

Donate Here to Get This Month's Donor Badge

 
Skip to toolbar

We recommend always using caution when following any link

Are you sure you want to continue?

Continue
Cancel