Which step in the link-state routing process is described by a router running an algorithm to determine the best path to each destination?
- load balancing equal-cost paths
- declaring a neighbor to be inaccessible
- choosing the best route
- executing the SPF algorithm
Explanation: In the link-state routing process, executing the SPF algorithm is the step where a router runs the Dijkstra Shortest Path First (SPF) algorithm against its Link-State Database (topology table). This calculation creates an SPF tree, which determines the best (shortest) path to every destination network based on cumulative link costs. Once this algorithm finishes, the best routes are then offered to the routing table.
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