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Table Of Contents  CertiGuide to A+ (A+ 4 Real)
 9  Chapter 13: Basic Networking Terminology
      9  OSI Reference Model and Networking Protocols and Technologies
           9  Layer 2 - Data Link Layer

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NIC
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 Ethernet, Token Ring, 100VG Any-LAN, FDDI
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Duplex

Protocols of the 2nd layer pass an accepted and transmitted signal on different pairs of cable, but the NIC works in a half-duplex mode for Ethernet. That is, in a certain moment of time it can either transfer or accept the data. However, for Fast Ethernet it is possible to work in full duplex, where the NIC is in a condition to accept and transfer the data at the same time, doubling throughput of a network. In this mode, CSMA/CD183 is not used.


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183. http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci213869,00.html

Previous Topic/Section
NIC
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1
Next Page
 Ethernet, Token Ring, 100VG Any-LAN, FDDI
Next Topic/Section

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