Troubleshoot a faulty computer network : RIP Troubleshooting Scenario 2. Can you find the issue?

The video tutorial addresses a network issue where router 1 cannot ping the loopback of router 4. Initial debugging reveals that the packet is unroutable. Further analysis shows a version mismatch in RIP configurations between routers, causing routing issues. The problem is resolved by aligning RIP versions across routers, allowing successful pings. The tutorial emphasizes careful version management in network protocols.

What version of RIP was router three sending, and how did it differ from router two?

What command was used to change the RIP version on the interface of router two?

What was the final outcome after resolving the RIP issue in the network?