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N10-009 · Question #197
N10-009 Question #197: Real Exam Question with Answer & Explanation
The correct answer is D: EIGRP. Enhanced Interior Gateway Routing Protocol (EIGRP) is the routing technology that uniquely employs the concepts of a successor and a feasible successor. These terms describe primary and backup routes to a destination.
Submitted by rachelw· Mar 6, 2026Network Implementations
Question
Which of the following routing technologies uses a successor and a feasible successor?
Options
- AIS-IS
- BOSPF
- CBGP
- DEIGRP
Explanation
Enhanced Interior Gateway Routing Protocol (EIGRP) is the routing technology that uniquely employs the concepts of a successor and a feasible successor. These terms describe primary and backup routes to a destination.
Common mistakes.
- A. IS-IS (Intermediate System to Intermediate System) is a link-state routing protocol that uses a shortest path first algorithm but does not use the terms successor and feasible successor.
- B. OSPF (Open Shortest Path First) is also a link-state routing protocol that calculates shortest path trees but does not use the specific terminology of successor and feasible successor.
- C. BGP (Border Gateway Protocol) is an exterior gateway protocol that uses path attributes and policies for routing, not successor/feasible successor terminology.
Concept tested. EIGRP routing terminology (successor, feasible successor)
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