Question

What happens if ends of a ethernet segment are joined?

Answer 1

Answer:

I don't know much at all about networking, and I when I tried to find an answer to this online I found someone who posted a one sentence answer saying "It would cause lots of broadcasts and collisions."

What would happen, if anything at all, if I were to connect an unmanaged network switch to itself with a normal Ethernet cable?

Scenario 1

If I had an 8-port unmanaged switch and I plug one end of an Ethernet cable into port 1 and the other end into port 2. This would be a consumer level switch, the kind available on Amazon for $20.