Discussion
What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Answer: C
Correct answer: Rolled
A rolled, or rollover, cable reverses the order of all eight wires and is used to reach a router or switch console port from a PC's serial port. It carries no Ethernet signalling at all, which is why neither straight-through nor crossover will do.
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