Which class of IP addresses is reserved for multicasting?

The class of IP addresses that is reserved for multicasting is Class D. In the context of IP addressing, multicasting refers to transmitting data to multiple hosts on a network simultaneously, rather than to a single destination (unicast) or to all hosts in a broadcast domain (broadcast).

Class D addresses range from 224.0.0.0 to 239.255.255.255 and are specifically designated for group communication, where packets are sent to a set of interested receivers that join a multicast group. This approach is particularly efficient for applications such as video conferencing, streaming media, and real-time data distribution, where the same data needs to be delivered to multiple users without unnecessary duplication of data paths.

This understanding of multicasting emphasizes the unique role that Class D addresses play in network communication and highlights their importance in scenarios requiring efficient data delivery to multiple recipients.