Identify the DSL and cable modem services referenced in this assignment and the region(s) in which they operate. A digital subscriber line (DSL) and cable modems provide Internet access to residential users who reside in the servicing network area of the provider. Cable modems deliver Internet access by drawing information from the same coaxial cable that delivers information to their televisions. DSL modems provide Internet access by transmitting digital data over copper wires in telephone lines. Both DSL and cable modems have advantages that proceeds one another, in particular because of the varying technology used in each. I reside in Trussville, AL, which is a suburb of Birmingham, Alabama. In 2010, Trussville’s population grew beyond its neighboring cities. Alongside the population growth came businesses, school, and network technology services. The residents of the city can choose from many different providers, because many providers developed services in the area they noticed the population growth. Both cable and SL services are available depending upon the provider’s services. The majority of the residents are motivated by prices; rather than technology. Many service providers promote bundle services to grasp the attention of the targeted audience, which in this area are working middle class families. Charter Communications and AT&T are amongst the top ranked in Trussville, because of the quality, speed, and affordability.

Create a diagram of the DSL and cable modem connections to your ISP, cable organization, and telecom to your home router using VISIO or its open source alternative software.
The Internet

DSLAM

Phone Box

DSL Splitter
Wall Jack

Compare and evaluate the speed of DSL and cable modem that you researched. Other than cost, speed is a certain determining factor when choosing between a cable modem and DSL. AT&T advertises DSL speed in terms of bandwidth. The speed for their DSL services can range from 128 Kbps to 3 Mbps. Residential DSL services often provide higher bandwidth for downloads, rather than for upload; because customers tend to download more. “Cable modem Internet services on average promise higher levels of bandwidth than DSL Internet services, and this bandwidth roughly translates to raw speed. However, while cable Internet will theoretically run faster than DSL, several technical and business reasons can reduce or even eliminate this advantage. In terms of theoretical peak performance, cable modem runs faster than DSL. Cable technology supports approximately 30 Mbps of bandwidth, whereas most forms of DSL cannot reach 10 Mbps. One type of DSL technology, VDSL, can match cable's performance, also supporting 30 Mbps. However, Internet service providers generally do not offer VDSL, but rather the cheaper and slower ADSL or SDSL services.”
Compare and evaluate the cost of DSL and cable modem that you researched. The cost of cable depends on many factors. Cable providers typically provide that best price if a customer chooses to bundle television, voice, and Internet. The sa

Reference
http://compnetworking.about.com/od/dslvscablemodem/a/speedcompare.htm