Question

Explain how DSL and Cable modem works in details; b) Compare and contrast DSL and Cable modem

Answer 1

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When you connect to the Internet, you might connect through a regular modem, through a local-area network connection in your office, through a cable modem or through a digital subscriber line (DSL) connection.

DSL speeds have been slower but new technology lessens the speed gap between DSL and Cable Internet. DSL offers users a choice of speeds ranging from 128 Kbps to 3 Mbps. Cable modem download speeds are typically up to 2 times faster than DSL. The important thing to note about cable Internet connections is that cable technology is based on shared bandwidth with many factors influencing a users download speed. With shared bandwidth the speed fluctuates depending on the number of subscribers on the network.

With DSL, the connection is yours and not shared, and you tend to have a more constant speed. This is one reason why cable Internet providers don't often publish speed information or use phrases like "with speeds up to..."instead of listing something a little more precise and numerical. In more rural areas with fewer subscribers, you're bound to have faster download speeds than a subscriber in a metropolitan center.

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