Cisco
352-001 · Question #640
352-001 Question #640: Real Exam Question with Answer & Explanation
The correct answer is A: Route filtering. In mutual redistribution between OSPF and EIGRP, route filtering and route tagging are the primary mechanisms to prevent routing loops and suboptimal path selection.
Question
In a network with dynamic mutual redistribution between multiple OSPFv2 and EIGRP boundaries, which two mechanisms avoid suboptimal routing? (Choose two)
Options
- ARoute filtering
- BAD manipulation
- CMatching EIGRP process ID
- DMatching OSPF external routes
- ERoute tagging
Explanation
In mutual redistribution between OSPF and EIGRP, route filtering and route tagging are the primary mechanisms to prevent routing loops and suboptimal path selection.
Common mistakes.
- B. AD manipulation can influence local route preference but does not prevent routes from being redistributed and re-advertised in loops across multiple redistribution boundaries.
- C. EIGRP process IDs are locally significant and have no influence on preventing suboptimal routing or loops during mutual redistribution with OSPF.
- D. Distinguishing OSPF external route types (E1 vs E2) affects metric calculation behavior but is not a recognized mechanism for preventing suboptimal routing in mutual redistribution scenarios.
Concept tested. Preventing routing loops in OSPF-EIGRP mutual redistribution
Community Discussion
No community discussion yet for this question.