350-401 · Question #851
Drag and Drop Question Drag and drop the characteristics from the left onto the routing protocols they describe on the right. Answer:
The correct answer is quickly computes new path upon link failure; maintains alternative loop-free backup path if available; selects routes using the DUAL algorithm. The correct arrangement maps EIGRP characteristics to their proper descriptions: OSPF 'quickly computes new path upon link failure' using the SPF (Dijkstra) algorithm, EIGRP 'maintains alternative loop-free backup path if available' via its Feasible Successor concept, and EIGRP…
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Drag and Drop Question Drag and drop the characteristics from the left onto the routing protocols they describe on the right. Answer:
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Correct arrangement
- quickly computes new path upon link failure
- maintains alternative loop-free backup path if available
- selects routes using the DUAL algorithm
Explanation
The correct arrangement maps EIGRP characteristics to their proper descriptions: OSPF 'quickly computes new path upon link failure' using the SPF (Dijkstra) algorithm, EIGRP 'maintains alternative loop-free backup path if available' via its Feasible Successor concept, and EIGRP 'selects routes using the DUAL algorithm' - the Diffusing Update Algorithm that is the cornerstone of EIGRP's route computation and loop-prevention mechanism. The DUAL algorithm is exclusive to EIGRP and enables both the successor and feasible successor selection, making all three characteristics interconnected with EIGRP's design while SPF-based rapid reconvergence is associated with link-state protocols like OSPF.
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