i don't believe so.
You don't use a USB CABLE. You use an ethernet cable from the back of your computer and plug it in the back of your XBOX360 to have XBOX LIVE. :)
If it is HD, yes.
through the Internet .. use and Ethernet cable and plug it from the xbox to the router (box looking thing) then on the dashboard go to join xbox live or something like that while logged in and hit a
no you have to have a xbox adapter.
Use an Ethernet cable!
Yes
Yes
No, you can also use an Ethernet cable
You can use the xbox 360 still but the adapter or an Ethernet cable enables you to get xbox live and play online
No it can not. you need a specific router to be able to use xbox live. It is possible to use an ethernet cable to connect to xbox live, or you could do what i do which is using my laptop as a connection bridge to connect to the xbox using wifi.
yes you could also use a wireless internet modem
yes unless you have the newest xbox 360 (black slimline), If not you have to use either an adapter or a ethernet cable