Final answer:
DVMRP is a multicast routing protocol that uses the RIP algorithm to determine the shortest path for data to multiple destinations, optimizing network traffic.
Step-by-step explanation:
DVMRP (Distance Vector Multicast Routing Protocol) is a multicast routing protocol based on RIP (Routing Information Protocol). It is used for interconnecting routers and enabling them to automatically discover the optimal paths for forwarding packets to multicast groups. By leveraging routing tables and the distance-vector algorithm, DVMRP determines the shortest path for data to travel from the source to multiple destinations. Unlike unicast routing, which sends data to a single recipient, multicast routing supports sending data to a group of destinations, reducing network traffic for applications like video conferencing and group software updates.