Tag: data communication
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2.1 The Link Layer
The Link layer is responsible for connecting your computer to its local network and moving the data across a single hop. The most common Link layer technology today is wireless networking.When you are using a wireless device, the device is only sending data a limited distance. A smartphone communicates with a tower that is a…
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2.7 Questions-Chapter 2
You can take this quiz online at http://www.net-intro.com/quiz/1) Why do engineers use a “model” to organize their approach to solving a large and complex problem?a) Because it allows them to build something small and test it in a wind tunnelb) Because talking about a model delays the actual start of the hard workc) Because they…
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2.6 Glossary-Chapter 2
client: In a networked application, the client application is the one that requests services or initiates connections.fiber optic: A data transmission technology that encodes data using light and sends the light down a very long strand of thin glass or plastic. Fiber optic connections are fast and can cover very long distances.offset: The relative position…
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2 Network Architecture
To engineer and build a system as complex as the Internet, engineers try to break a single challenging problem into a set of smaller problems that can be solved independently and then put back together to solve the original large problem. The engineers who built the first internets broke the overall problem into four basic…