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Saturday, June 10, 2006

A+ HW: Which residential Internet connection technology offers a shared connection technology?

Which residential Internet connection technology offers a shared connection technology?

A. Cable Modem
B. ADSL
C. ISDN
D. Dial Up


Explanation: DSL provides a dedicated service over a single telephone line; cable modems offer a dedicated service over a shared media. While cable modems have greater downstream bandwidth (up to 9 Mbps), that bandwidth is shared among all users on a line, and will therefore vary, perhaps dramatically, with traffic. Cable modem upstream traffic will in many cases be slower than DSL, either because the particular cable modem is inherently slower, or because of rate reductions caused by contention for upstream bandwidth slots.

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