Absolute newbie here guys,
I was reading the compTIA Network+ guide by Mike Meyers, and a section reads: "The frame propagates down the wire into the central box. The switch sends unicast frames to the destination address and sends broadcast frames to every system on the network." I understand the meaning of both unicast and broadcast frames, but why are broadcast frames being sent to every system on the network after the unicast frames? He does not give reasons as to why this happened in this particular instance and I would love some clarity!