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System & Device Check
About the Class
Most conventional GIS data models separate information in layers, each representing a different class of geographical elements symbolized as points, lines and polygons in the majority of cases. As such, a network data model must be constructed with the limitation of having points and lines in two separate layers; thus the layer-based approach. This session would lay stress on:
- The standard model for networking protocols and distributed applications is the International Standard Organization''s Open System Interconnect (ISO/OSI) model. It defines seven network layers.
- TCP/IP protocol has been used by most Unix workstation vendors. TCP/IP is designed around a simple four-layer scheme. It does omit some features found under the OSI model. It also combines the features of some adjacent OSI layers and splits other layers apart.
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Keywords: network models, networking, information technology (it)