Accessing the Internet
Many people begin their CCENT and CCNA study never having heard of leased lines, but many people have heard of two other WAN technologies used to gain access to the Internet: digital subscriber line (DSL) and cable. These two WAN technologies do not replace leased lines in all cases, but they do play an important role in the specific case of creating a WAN connection between a home or office and the Internet.
This last major section of the chapter begins by introducing the basic networking concepts behind the Internet, followed with some specifics of how DSL and cable provide a way to send data to/from the Internet.
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