cable modem questions

[berzas]

    1.Coaxial wire. Do it can be plugged to any socket to provide internet. (for exmaple in my house is 7 sockets, does it means, it can be plugged-in to any socket, or socket must have specific prerequisittions?)

   2. Do cable modem must have connected this (http://cdn-data.motu.com/site/images/ultralite-avb/ethernet-cable.png)
in order to provide internet access?

   3. Do cable modem must have connection with a router?   via (http://cdn-data.motu.com/site/images/ultralite-avb/ethernet-cable.png).
If yes, can it use router somehow, even if router have securities?

If it does impact to each other. What router settings must be to cause conflicts/missmatch to each another?
(i.e. channels, router IP...)

    4. What means 'wireless router'?
Router who dont need these http://cdn-data.motu.com/site/images/ultralite-avb/ethernet-cable.png
Router who can provide WiFi.

[Allan]

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