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This text is appropriate for those courses with an emphasis one-commerce and the Internet, as well as short courses or MBA/IScourses that want a modern approach. Networking has changeddramatically over the past ten years. Most texts have focused onnetwork layers and their concepts and then on how the differenttechnologies are implemented; however with the number of viabletechnologies shrinking, it makes less sense to focus on conceptsfirst and technologies second. Networking in the InternetAge first edition integrates the discussion ofconcepts and technologies so they appear in one place, organized bylayers.