What are the features of the switch with mulsticast?

Question

Computer networks

One of the tickets for the exam contains the following question:
What are the features of the switch with mulsticast traffic?

Answer 1

O! You are entering a pain zone :-)
It all depends on the task, but the very first thing is to set up IGMP Snooping.
Further, either filter, or skip, or sign, or proxy, or all together.
Well, turn on PIM for example. The topic is as broad as routing, which is exactly what it is, only based on switches.
Well, in short, multicast is mandatory, no, even so - it is MANDATORY to filter, otherwise this traffic will run to everything, absolutely ALL ports, wilans and devices. And most likely these devices (printers, modems, WiFi points, ip-phones), including switches (even boobs fall under the influx of multicast), will simply stop working. And you will look for the problem for more than one hour.
In general, one multicast stream of 5-10 megabits on a network without IGMP Snooping makes everyone extremely surprised.