This installment provides a thorough overview of networking basics: OSI versus TCP/IP models, MAC and IP addressing, and packets and ports. Start here to prepare for the exam and your future as a certified networking professional. So the Open System Interconnected Model; aka OSI Model is a conceptual model that characterizes and standardizes the communication functions of a telecommunication or computing system without regard of their underlying internal structure and technology.The point of the OSI model is that it is used as a guide or map to help in troubleshooting computer problems. IPv4 OSI Model - Learn IPv4 (Internet protocol Version-4) in simple and easy steps. A beginner's tutorial containing complete knowledge of IPv4 with OSI Model, TCP/IP Model, Packet Structure, Addressing, Classes, Subnetting, VLSM, Reserved Addresses and its example. Network Layer (Layer-3): The Open Systems InterConnection (OSI) model is a reference model developed by International Organization for Standardization (ISO) in 1984. Which describes how communication should take place between two nodes in a network. Join Timothy Pintello for an in-depth discussion in this video Understanding Layer 3: The network layer, part of Networking Foundations: Networking Basics Define the OSI Model. Describe layer 2 of the OSI Model. Cite traits of the TCP/IP protocol suite. Skill Level Beginner. 1h 48m Duration The OSI Model tutorial will walk you step by step through the OSI Model, its seven layers, show you how it works and present you with a real world example of the OSI Model in operation. The OSI model is a way of describing how different applications and protocols interact on network-aware devices. We explain the role of each layer and of the stack. By Neil Briscoe PC Network Advisor www.itp-journals.com Tutorial:Overview. The OSI model explained: How to understand (and remember) the 7 layer network model A tutorial on the Open Systems Interconnection networking reference mo