The unique identification number assigned to your computer when you connect to the internet is known by all of the following, except

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Explanation:

The unique identification number that is linked to your computer when you conect is calles IP adress and is like a regular adress of your home, except that this is linked to your devices or the connection point to which your device is connected, from this you could actually access the sites and files that have been visited from that Ip and that direction.