mDNS (multicast DNS) queries are sent to 224.0.0.251:5353. While this is a multicast address, don't all hosts on the network segment have to receive this traffic in order to have the correct DNS entries? If that is the case, then why not just sent the queries to 255.255.255.255 or another broadcast address? If not, what devices in the network segment are not part of the group that receives traffic sent to 224.0.0.251:5353?
Thanks.