CCNA Question of the Week

In this weekly series, Jill Liles posts questions and answers to help readers prepare for the CCNA exam.

What condition must be satisfied for a router to become an EIGRP feasible successor?

  1. The feasible distance of the route must be less than the advertised distance of the current successor
  2. The advertised distance of the route must be equal to the feasible distance of the current successor
  3. The administrative distance of the route must be less than the feasible distance of the current successor
  4. The feasible distance of the route must be less than the administrative distance of the current successor
  5. The advertised distance of the route must be less than the feasible distance of the current successor

 

The correct answer is E.

The advertised distance of the route is the metric of the neighboring router for the route. This must be less than the feasible distance of the current successor, which is the best metric of this router for the route. This guarantees that there is no routing loop — this router will not send a packet to the neighboring router only to have it sent back to this router.

 

Related Courses:
ICND1 — Interconnecting Cisco Network Devices 1
ICND2 — Interconnecting Cisco Network Devices 2
CCNAX — CCNA Boot Camp v1.1

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