Setting 1: 1 master access point and 2 slave stations with 802.11 chipsets.
Setting 2: 1 master PC connected to 2 slave PCs through a switch and Ethernet cables.
Scenario: An application running at master wants to broadcast some data to the applications running at the 2 slaves, so it sends a UDP datagram with a broadcast address.
Question 1: Given that all 3 devices communicate via 802.11, does a UDP broadcast datagram translate into 802.11 MAC broadcast/multicast frames? If not, when is the broadcast/multicast used apart from sending beacons?
Question 2: Same as Question 1, but with Ethernet instead of 802.11.