Broadcast Address

Normally the last address in the range, for example if we have subnet 10.10.10.0/24, the broadcast address would be 10.10.10.255.

Broadcasting MAC address will be all FF:FF:FF:FF:FF:FF. This is a reserved MAC address to send a packet to everyone on the local network

This address is reserved for broadcast traffic for any host within the subnet It basically do Broadcast to all devices within the same subnet.