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Which routing protocol depends on the DUAL algorithm to calculate the shortest path to a destination

Q: Which routing protocol depends on the DUAL algorithm to calculate the shortest path to a destination?

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Dijkstra

OSPF stands for open shortest path first. OSPF is an exterior routing protocol. OSPF uses Path vector routing algorithm.

This distance-vector algorithm works by computing the shortest path , and considers weights. The algorithm was distributed widely in the RIP protocol.

A practical application is in certain routing protocols, like OSPF. The problem it solves is to search for the "shortest" path to each destination - "shortest" meaning the one that has the lowest "distance" or "metric" according to the criteria used. Dijkstra's algorithm is easy to use and is a good graph search algorithm to use when it is hard to calculate the heuristics.

Enhanced Interior Gateway Protocol It is a Cisco proprietary protocol. It uses bandwidth and delay by default to calculate the best path. It can also use load and delay, but these are usually not used. It is a distance vector routing protocol. It keeps a topology map, but it is only similar to the topology map of link state routing protocols.

It looks for the quickest way to the destination by continuing on the shortest path

dijkstra's algorithm (note* there are different kinds of dijkstra's implementation) and growth graph algorithm

yes

Dijkstra's algorithm is used by the OSPF and the IS-IS routing protocols. The last three letters in OSPF (SPF) mean "shortest path first", which is an alternative name for Dijkstra's algorithm.

Routers that run a link-state protocol can establish a complete topology of the network. The shortest path first algorithm is used.

There is not "a" greedy algorithm; "greedy algorithm" is a term to describe several algorithms that have some things in common. The general idea is that at each step, you look for what seems to be, "locally", the best solution. For example, in a shortest-distance problem, look for a step that takes you closer to the destination. This may, or may not, lead to the best solution overall.

Answer: shortest path routing