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Exam 400-007 topic 1 question 58 discussion

Actual exam question from Cisco's 400-007
Question #: 58
Topic #: 1
[All 400-007 Questions]

Which two mechanisms avoid suboptimal routing in a network with dynamic mutual redistribution between multiple OSPFv2 and EIGRP boundaries? (Choose two.)

  • A. AD manipulation
  • B. matching OSPF external routes
  • C. route filtering
  • D. matching EIGRP process ID
  • E. route tagging
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Suggested Answer: CE 🗳️

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qtg9rMGmj23tFm4n02X4
Highly Voted 2 years, 6 months ago
Selected Answer: CE
https://www.cisco.com/c/en/us/support/docs/ip/enhanced-interior-gateway-routing-protocol-eigrp/8606-redist.html
upvoted 10 times
biddid
2 years, 1 month ago
Same practice in CCE lab exam. If no filtering, why does need tagging?
upvoted 1 times
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Devsin2000
Most Recent 2 months, 4 weeks ago
Selected Answer: CE
Route Filtering is need to avoid re-injecting the route back from it was learnt Tagging makes this jobs much easier and scalable.
upvoted 1 times
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Redrum702
9 months, 3 weeks ago
Answer is AE: I had to do this in the CCIE LAB and it's route tagging and/or manipulating the AD.
upvoted 1 times
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Rollizo
1 year, 3 months ago
Selected Answer: CE
No AD manipulation. Why do you need to manipulate? The OSPF and EIGRP AD is different already
upvoted 1 times
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bdp123
1 year, 12 months ago
Selected Answer: AE
with MULTIPLE OSPF and EIGRP boundaries you use route tagging to prevent routing loops and suboptimal routing https://bethepacketsite.wordpress.com/2016/08/12/redistribution-preventing-suboptimal-paths-using-route-tags/
upvoted 4 times
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Akkisingh
2 years ago
Selected Answer: AE
To solve this type of problem, the redistributing routers must have some awareness of which routes came from the other routing domain. In particular, the lower-AD routing protocol needs to decide which routes came from the higher-AD routing protocol, and either use a different AD for those routes or filter the routes. https://www.ccexpert.us/routing-switching-2/mutual-redistribution-at-multiple-routers.html
upvoted 1 times
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Dvnn
2 years, 2 months ago
https://www.ccexpert.us/routing-switching-2/mutual-redistribution-at-multiple-routers.html
upvoted 2 times
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Johnny_Stellmar
2 years, 3 months ago
no it is AD and route tagging
upvoted 2 times
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