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Cisco CCNA 640-801 - The Open Systems Interconnect Model (OSI)


This course explains the Open Systems Interconnection (OSI) reference model. This model is an industry standard for increased interoperability and breaks network communication into seven distinct layers. This course also explains the purpose and function

This lesson is part of our Cisco CCNA 640-801 online training series which contains over 15 hours of self-paced courseware. Our web-based training provides 6 months of unlimited access.


After completing this course you will be able to:

  • Explain the rationale behind the development of the OSI model.
  • Describe the differences between connection-oriented and connectionless communications
  • Explain the functions of each layer and sub-layer in the OSI model
  • Describe how the OSI model passes between network modes
  • Describe the five steps of encapsulation and de-encapsulation


  • Developing the OSI Reference Model
  • The Physical Layer and the Data Link Layer
  • The Network Layer and the Transport Layer
  • The Session, Presentation, and Application Layers
  • The OSI Model in Operation
  • The Data Encapsulation Process
  • Reversing the Data Encapsulation Process

This course is for anyone who wants to get the most out of using Cisco CCNA 640-801.

Prerequisites: None:

Technical Requirements:

  • Internet connection
  • Browser: Internet Explorer, FireFox, Chrome, Safari, Opera or any standards compliant browser.
  • Authorware and Macromedia Flash player recommended but not required.
  • JavaScript must be enabled.

Retake any or all of our computer training as often as you want. Our online tutorials allow you to learn anywhere, anytime from any computer with internet access. All courses allow for 6 months of unlimited access (1 user), includes a variety of features and all courses qualify for Continuing Education Unit credit.

StaffKit is an e-learning leader in providing computer training tutorials and online education. We have satisfied customers in over 75 countries using our online training courses. We have been a leading provider of self-paced web based training for the past 10 years.

Total Courses: 10
Total Time: 15+ hours
Only $99.95
Available in Package only
Total Courses: 853
Total Time: 1723+ hours
Only $249.95
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