Networking and Databases Tutorial 5

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1. It is said that hooking some computers together with a cable does not make a network. Explain why? So what constitutes a network?

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2. How do local area networks (LANs) differ from metropolitan area networks (MANs), and wide area networks (WANs), and backbone networks (BNs)?

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3. “An Application Architecture is the way in which the functions of the application layer software are spread among the clients and servers in the network” (FitzGerald & Dennis, 2010, pg. 40). i. List the four functions of the application layer being referred to above. ii. In a client-server application architecture, distinguish between a Thin Client and a Thick Client architecture.

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4.Explain the function of each of the protocols used at each of the layers and how each enable the transmission of the message.

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5. Suppose your organisation was contemplating switching from a three tier client server architecture to a cloud based architecture (services), discuss at least three possible problems that you foresee?

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6. Some experts argue that thin-client client-server architectures are really host based architecture in disguise and suffer from the same old problems. Do you agree? Explain.