IT 2250 Introduction to Network Technology
May 29, 2011
Table of Contents
Networking Technology Concepts 1
OSI Reference Model 4
Network Standards 5
U02a1 Networking Technology Concepts
Network architecture can be referred to as the logical and structural layout of a network. It entails transmission equipment, software and network protocols. It can apply to wired and wireless mode of transmission of data and connectivity between networked components. There are several network layouts/topologies among which are (a) Bus topology. (b) Star topology. (c) Ring topology and last but not the least (d) mesh/hybrid topology. Their names are very descriptive of how they look like.
May I also mention in passing, that we have different types of networks such as 1) LANs (Local Area Networks) which are networks that can be found within say the same building. They are confined within the same geographical area. 2) MANs (Metropolitan Area Networks). These can span across buildings which are not very far from one another say about 1km away. Network communication goes through phases/steps or layers. These layers are what network professionals describe as the OSI (Open System Interconnection) model. It lays out the foundation upon which information travels say from one computer to another within a network. “In the early 1980s, ISO began work on a universal set of specifications that would enable computer platforms across the world to communicate openly. The result was a helpful model for understanding and developing computer-to-computer communications over a network”. (Dean, T. 2020, p.44).
OSI Reference Model
The following are the seven layers of the OSI model
Application Layer which provides us interaction and access to all applications on the computer. (Word processing, email, excel etc. etc.)
Presentation layer; which is... [continues]
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