3
Layer 2 LAN Technologies
CERTIFICATION OBJECTIVES
3.01 Ethernet Evolution and Standards
You’ll recall from Chapter 1 that local area networks (LANs) are used to interconnect network components that are geographically close together. Ethernet is one of the most common layer 2 technologies used for connecting the LAN network components, followed by wireless communications. This chapter is devoted to Ethernet, including its operation, the two Ethernet standards, ...
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