Answer:
On R3, run OSPF for area 0 on Fa0/0
On R3, run OSPF for area 0 on Fa0/1
Then,
On R3, run OSPF for area 0 on serial0/1/0.
Explanation:
Open Shortest Path First (OSPF) is a routing protocol for Internet Protocol (IP) networks. You then use a link state routing (LSR) algorithm and falls into the group of interior gateway protocols (IGPs), operating within a single autonomous system (AS).
