ISO OSI reference model

A comprehensive tutorial is available at tutorialsweb on ISO OSI model. OSI model is the basic building block of CCNA certification preparation, and it is highly required that a CCNA aspirant has a solid understanding of different layers of OSI model. The contents of the tutorial are given below:

• The OSI (Open Systems Interconnection) Model
• Information Exchange Process
• Relationship between the OSI Model and Networking Devices
• Repeaters, Bridges, Routers, Gateways and other network components
• Glossary of Networking Terms

Read complete tutorial on ISO OSI model for CCNA preparation.