I'm repeating a "LAN Switching and Wireless" module in college and I'm looking over past exam papers in preparation for the repeat exam. One of the questions is
What is a broadcast domain? Using an example, explain how VLANs affect the broadcast domain.
I know that a broadcast domain is a logical division of a network whereby all nodes can reach each-other on the data-link layer by broadcast. And I realise that each VLAN is essentially its own broadcast domain. But I don't know what example I could give that could answer this question properly.