A router has learned about the same destination network from both OSPF and RIP routing protocols. How does the router determine which route to install into its routing table?
The route learned via the protocol with the lowest administrative distance is installed.
The route learned via the protocol with the fastest convergence time is installed.
Both routes are installed and used for load balancing.
The route with the lowest metric value is installed.
When a router learns the same destination network from multiple routing protocols, it uses administrative distance to determine which route to install. Administrative distance is a value that rates the trustworthiness of a routing protocol; lower values are preferred. OSPF has a default administrative distance of 110, while RIP's default is 120. Therefore, the router installs the route learned via OSPF because it has a lower administrative distance. Metrics are used to select routes within the same routing protocol, not between different protocols. Load balancing does not occur between routes from different protocols by default. Convergence time is not a factor in route selection for installing routes into the routing table.
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Cisco CCNA 200-301
IP Connectivity
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