200-101 · Question #15
Which statements are true about EIGRP successor routes? (Choose two.)
The correct answer is A. A successor route is used by EIGRP to forward traffic to a destination. D. A successor route may be backed up by a feasible successor route.. In EIGRP: (A) The successor route is the best path to a destination - it has the lowest Feasible Distance (FD) and is installed in the routing table and used to forward traffic. (D) A feasible successor is a backup route that satisfies the Feasibility Condition (its Reported Dist
Question
Options
- AA successor route is used by EIGRP to forward traffic to a destination.
- BSuccessor routes are saved in the topology table to be used if the primary route fails.
- CSuccessor routes are flagged as 'active' in the routing table.
- DA successor route may be backed up by a feasible successor route.
- ESuccessor routes are stored in the neighbor table following the discovery process.
How the community answered
(39 responses)- A87% (34)
- B8% (3)
- C3% (1)
- E3% (1)
Explanation
In EIGRP: (A) The successor route is the best path to a destination - it has the lowest Feasible Distance (FD) and is installed in the routing table and used to forward traffic. (D) A feasible successor is a backup route that satisfies the Feasibility Condition (its Reported Distance must be less than the current FD), and it stands by to immediately replace the successor if it fails. Option B is wrong - feasible successors (not successor routes) are stored in the topology table as backups. Option C is wrong - active means EIGRP is actively querying for a new path (a problem state), not a normal successor. Option E is wrong - neighbor information is in the neighbor table; successor routes are in the routing table and topology table.
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