Discussion
In dual cable system to transmit a data a computer outputs the data on to cable 1, which runs to the device called the ............... at the root of the cable tree.
Answer: C
The device is called the head end.
In a dual cable broadband system, computers transmit on cable 1 towards the head end at the root of the cable tree. The head end transfers the signal to cable 2, which carries it back down the tree to all the computers.
'Tail end', 'after one hop' and 'round trip' are not names of this device; round trip describes a delay, and a hop is a link traversed in a network.
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