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What is the similarity and/or different between Download/Upload speed and Bandwidth speed?
Some author use kilobyte kB while other use kilobit kb, what is the different and which one is best to measure down/upload speed and bandwidth speed?
Lastly, it is possible to use two (2) broadband internet connections, maybe for reliability sake, on a network with proxy server on windows OS? Please give hints or links on how it can be configured.

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Last Post by eliza17
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>> What is the similarity and/or different between Download/Upload speed and Bandwidth speed?
They usually use the same unit of measure. The differences depend on the type of line. With ADSL you have asymmetrical speeds meaning one is faster than the other (you can usually download faster than you can upload). With SDSL you have symmetrical speeds, meaning they are the same.

>>Some author use kilobyte kB while other use kilobit kb, what is the different and which one is best to measure down/upload speed and bandwidth speed?
There is no best. Its more like using english units or metric units. Typically bandwidth/throughput speed/etc is measured in bits, so kilobit megabit etc. Storage capacity is usually represented by bytes, so kilobyte and megabyte. It doesn't matter which one you use since you can convert from one to another.

>>Lastly, it is possible to use two (2) broadband internet connections, maybe for reliability sake, on a network with proxy server on windows OS? Please give hints or links on how it can be configured.

Yes. The configuration depends on a lot of things. This is probably looking for an answer with concepts you covered in class so I don't know what to recommend. You can configure failover lines at the router level so the fact that the server is Windows and has a proxy service installed is insignificant in the configuration. I don't know what you're looking for here.

Edited by sknake: n/a

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Bandwidth is the capacity of the connection whereas download speed is the actual rate of downloading which wil always be lower since a proportion of packets going over the connection are not part of the data as such - there will be packets for maintaining the connection, resent packets because some arrived corrupted and so on.

Also, bandwidth is measured in kilo bits per second whereas download speed is usually measured in kilo bytes per second - there are 8 bits per byte so 7.5 kbytes per sec is actually very good for a 64 kbits per sec connection - the theoretical best being 8 kbytes per sec

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