CompTIA Security+ Exam Prep

Answer: C - Repeater devices provide the simplest type of connectivity. Repeater devices are the simplest because they only repeat and amplify electrical signals between cables segments, which enables them to extend a network. Repeaters work at the physical alert and are add-on devices for extending network connection over a greater distance. The device amplifies signals because signals attenuate the further they have to travel. Repeaters can also work as line conditioners by cleaning up the signals. This works much better when amplifying digital signals than when amplifying analog signals, because digital signals are discrete units, which makes extraction of noise from them much easier for the amplifier.