ET3220 Week2-2 - Questions 4.1 4.2 4.6...

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Questions 4.1 The network access layer is concerned with the exchange of data between a computer and the network to which it is attached. 4.2 The transport layer is concerned with data reliability and correct sequencing. 4.6 Transmission Control Protocol/Internet Protocol (TCP/IP) are two protocols originally designed   to   provide   low   level   support   for   internetworking.   The   term   is   also   used generically to refer to a more comprehensive collection of protocols developed by the U.S. Department of Defense and the Internet community. 4.7 Layering   decomposes   the   overall   communications   problem   into   a   number   of   more manageable sub problems. 4.8 A router is a device that operates at the Network layer of the OSI model to connect dissimilar networks. Problems 4.1 The guest effectively places the order with the cook. The host communicates this order to the clerk, who places the order with the cook. The phone system provides the physical
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