The lecture covers the differences between BGP, GP, IG, and other routing protocols, focusing on distance vector and link state protocols. It explains alternative routes to remote networks using a network diagram with routers R1, R2, R3, and R4. The lecture discusses how different routing protocols select routes based on specific metrics and concludes with a preview of the next lecture on metrics.

What is one key difference between distance vector and link state routing protocols?

• Distance vector protocols calculate the shortest path using Dijkstra's algorithm.

• Distance vector protocols use a complete map of the network.

• Link state protocols have a faster convergence time.

• Link state protocols rely on periodic updates from neighbors.

In the given network diagram, which router is directly connected to both R1 and R4?

• R4

• R3

• R2

• R1

How can router R2 reach a remote network according to the lecture?

• Directly via R1

• Directly via R4

• Only via R3

• Only via R4

What is the first step a router takes when it receives a specific network from a neighbor?

• Inserts it into the routing table

• Calculates the metric

• Inserts it into the routing database

• Selects the best route

What factor influences the selection of the best route by different routing protocols?

• The number of routers in the network

• The approach to calculation of the metric

• The type of data being transmitted

• The speed of the network connection