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used to transmit electromagnetic waves
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an early packet switching network and the first network to implement the tcp/ip protocol suite
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the email was simply a test message to himself
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a standard that defines how to established and maintain a network conversation via which applications programs can exchange data
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a formatted unit of data carried by a packet switched network
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a company that provides subscibers with access to the internet
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optical fiber is used as a medium for telecommunication and computer networking because it is flexible and can be bundled as cables