Differentiate between isdn,dsl,leased line internet connection
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ISDN - Integrated Services Digital Network
- It uses telephone frequencies.
- It uses the phone line to literally phone the ISP to establish a connection. Since much lower frequencies are used, bandwidth is extremely limited. Fastest I've ever seen was 128kb/s or 16kB/s.
- You cannot use the phone and ISDN at the same time.
DSL - Digital subscriber line
- Cable internet is a type of connection that transmits data through a cable television network through a coaxial cable.
- While cable is generally faster than DSL,
- Its primary disadvantage is that you're sharing bandwidth with neighbors who are using the same cable line. .
Leased Line
- Any line you rent for the explicit purpose of connecting to the internet (eg: fiber, diginet, some argue a telephone line only for ADSL)
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