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CCNA® Cisco Certified Network Associate: Study Guide, Seventh Edition by Todd Lammle

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Summary

In this chapter, you learned the fundamentals of Ethernet networking, how hosts communicate on a network, and how CSMA/CD works in an Ethernet half-duplex network.

I also talked about the differences between half- and full-duplex modes and discussed the collision detection mechanism CSMA/CD.

Also in this chapter was a description of the common Ethernet cable types used in today’s networks. And by the way, you’d be wise to study that section really well!

Important enough to not gloss over, this chapter provided an introduction to encapsulation. Encapsulation is the process of encoding data as it goes down the OSI stack.

Last, this chapter covered the Cisco three-layer hierarchical model. I described in detail the three layers and how each ...

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