When a newer update is received for a route that hasalready been inserted into the routing table, the newer update is considered to bemore reliable, andis itself insertedinto the routing table, overwriting the previousentry. This means that each time Router B receives an update from Router A orRouter C, it will change its routing table to show that network 10.0.0.0 is behind the router from which it received the update.
He's referring to classful routing with RIP. His example is using a discontiguous network and the router in the middle(B) recieves advertisements from A and C for route 10.0.0.0/8. He basically makes it sound like router B will remove one of the routes, replacing it with the other when the timed update is sent, swapping the routes out. I do not think this is true, RIP will load balance the equal cost paths, not replace one of them with the other.
He also says that RIPv2 has a max hop count of 255. I'm pretty sure it's got the same limitation of 16 just as RIPv1. I'm not at home in the lab to test this right now so...