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e-business Kuala Lumpur Metropolitan University College IT networking

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a. Identify and explain the five (5) layer-model of E-Business infrastructure I. E –business services application layer. In the Open Systems Interconnection (OSI) communications model, the applica... tion layer provides services for an application program to ensure that effective communication with another application program in a network is possible. The application layer is not the application itself that is doing the communication. II. System software layer Systems software can be partitioned using the concept of software layers. Software layers are where each ‘layer’ of a system as you burrow down into the layer stack. The diagram illustrates how an Internet Browser fits into a layer, I am not saying this is how the Internet is layered, it is merely a representation. III. Transportation or network layer Basic Needs for TCP/IP Communication Some of the applications we use require us to move data from point a to point b across a network. The TCP/IP network provides a framework for transmitting this data, and it requires some basic information from us to move this data. We need to specify if we want the most reliable or fastest transmissions, and we need to specify where we want the data delivered. Sometimes our data is routed based on its IP addresses and s [Show More]

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