Repeater, repeater, repeater...
If your looking to become a network administrator then having a sound foundation is key. A good start to a strong foundation is knowing your hardware. The first question I seem to get is what is the difference between a hub, repeater and switch? A repeater does exactly what its name says. A repeater does exactly what its name says lol. It repeats any electrical signals that come into one port or out its other port. This
is not the smartest device but it served its purpose.
Hub a bub bub
A hub is typically the least expensive, least intelligent, and least complicated of the three. Its job is pretty simple: anything that comes in one port is sent out to the others. Every computer connected to the hub "sees" everything that every other computer on the hub sees. The hub itself is ignorant of the data being transmitted. For years, simple hubs have been quick and easy ways to connect computers in small networks. The Hub and repeater both work at the Physical layer of the OSI Model, Layer 1.