[jmontgomery2]

One network device is the repeater which is a layer one network device. This device is used to receive a signal and send it out unaltered at a stronger power to reach a further distance. This is to avoid the risk attenuation which would weaken or eliminate the signal entirely.
A second network device is a bridge. This is a level two network device and is used to extend and connect physical networks together. Bridges help avoid collisions and creates separate domains for collisions, thus increasing bandwidth availability.
The third network device is the gateway, this level three network device is a node on a computer network. Gateways act as stopping points for information on their war to another network. They can allow information to pass through or deny it’s entry into the network.