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Table Of Contents  CertiGuide to Network+
 9  Chapter 0011:  Network Hardware
      9  III  Layer 1 – Physical Layer

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Transceiver
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IV  Layer 2 – Data Link Layer
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Wireless Access Point

A Wireless Access Point is a hub-like device that connects wired and wireless devices together, and allows them to send and receive data. When discussing wired networks, we talk about topologies like star, bus and ring to describe the physical path of the connections among computers on the network. In the wireless world, the topology is star-like, since multiple clients communicate with a single Wireless Access Point. It’s not strictly a star, though, since multiple wireless access points can be available, and a client computer can use whichever it’s currently closest in proximity to (really, whichever has the best signal strength).


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Transceiver
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IV  Layer 2 – Data Link Layer
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