Correct Answer: Repeater

Solution : The correct answer is Repeater.

The repeater is a gadget used in the physical layer of IT networking. It is used to boost signals so that they can travel further. Repeaters receive a signal and then retransmit it at a greater power level. This permits the signal to go longer without being tampered with. In wired networks, repeaters are frequently used to increase the reach of a network segment. They may also be used to improve the signal strength of a wireless access point in wireless networks.