Answer:
RIP
Step-by-step explanation:
RIP is a routing protocol that stands for Routing Information Protocol. It is a distance-vector routing algorithm which uses a hop count for routing its metric. RIP is the most popular and frequently used on internet. RIP uses hop count, which means it goes from low hop count to high hop count.
Therefore, it is the Routing Infomation Protocol which is the most popular distance-vector routing algorithm used to determine the best routes within a network.