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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 '

Submitted by andres_qro· Mar 6, 2026IP Connectivity – Understand and configure routing protocols including EIGRP and OSPF characteristics, convergence mechanisms, and path selection algorithms (CCNA 200-301 Domain 3)

Question

Drag and Drop Question Drag and drop the characteristics from the left onto the routing protocols they describe on the right. Answer:

Exhibit

350-401 question #851 exhibit

Answer Area

Drag items

maintains alternative loop-free backup path if availablequickly computes new path upon link failureselects routes using the DUAL algorithm

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.

Topics

#EIGRP#OSPF#Routing Protocols#DUAL Algorithm

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