Which of the following are required when adding a network to the OSPF routing process configuration? (Choose three.) In a lab test environment, a router has learned about network through four different dynamic routing processes. Which route will be used to reach this network? A network administrator is analyzing routing update behavior on a network that has both EIGRP and OSPF configured on all routers. Both protocols appear in the output of show ip protocols. However, only EIGRP internal routes appear in the routing tables. Which statement correctly explains the scenario?.