Cisco
352-001 · Question #748
352-001 Question #748: Real Exam Question with Answer & Explanation
The correct answer is A: Ring. A ring topology produces the longest EIGRP convergence time because minimal path diversity forces DUAL queries to propagate across every node in the ring before convergence can complete.
Question
Which network topology type has the longest EIGRP convergence time?
Options
- ARing
- BTree
- CStar
- DFull mesh
Explanation
A ring topology produces the longest EIGRP convergence time because minimal path diversity forces DUAL queries to propagate across every node in the ring before convergence can complete.
Common mistakes.
- B. A tree topology limits EIGRP query scope to specific branches and subtrees, so active-state queries do not need to propagate through the entire network before convergence.
- C. A star topology confines failures to individual spoke links and limits queries to the hub and the affected spoke, resulting in a very small query domain and fast convergence.
- D. Full mesh topologies provide every router with direct connections to all others, maximizing feasible successor availability and allowing EIGRP to converge immediately without going active in most failure scenarios.
Concept tested. EIGRP DUAL convergence time by network topology
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