12.Which of the following is a valid MAC address?a.C3000000FFFFb.111.111.111.111c.::9F53d.AEFFG0930110e.D0000000

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Device network connection

The network segment is formed by attaching connectivity devices to network cables. Data are not filtered by the hub. The data packets are transmitted again to all the parts through the hub. Nowadays the computers are connected to networks using a hub or switch.