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Exam 300-410 topic 1 question 87 discussion

Actual exam question from Cisco's 300-410
Question #: 87
Topic #: 1
[All 300-410 Questions]

A DMVPN single hub topology is using IPsec + mGRE with OSPF.
What should be configured on the hub to ensure it will be the designated router?

  • A. route map to set the metrics of learned routes to 110
  • B. tunnel interface of the hub with ip nhrp ospf dr
  • C. OSPF priority to 0
  • D. OSPF priority greater than 1
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Suggested Answer: D 🗳️

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[Removed]
Highly Voted 3 years, 4 months ago
A priority of 0 means a router will not participate in DR/BDR election.
upvoted 5 times
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[Removed]
Most Recent 9 months, 1 week ago
Selected Answer: D
D is correct
upvoted 1 times
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Normanby
1 year, 4 months ago
Selected Answer: D
Classic misdirect question - the question really is: how to force a router to be the DR.
upvoted 2 times
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chris110
1 year, 7 months ago
In a DMVPN (Dynamic Multipoint Virtual Private Network) single hub topology with OSPF, to ensure that the hub router becomes the designated router (DR) for the OSPF network, you need to configure the OSPF priority of the hub router to be greater than 0. OSPF uses the priority value to determine which router becomes the DR. The router with the highest priority becomes the DR. So, the correct option is: D. OSPF priority greater than 1 Setting the OSPF priority to a value greater than 1 will increase the likelihood of the hub router becoming the designated router in the OSPF network. Typically, setting the priority to 1 means the router is not eligible to become the DR, so it should be set to a value greater than 1 to become the DR.
upvoted 2 times
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[Removed]
3 years, 8 months ago
The given answer is correct. o means never DR, 1 is the default, highest wins
upvoted 4 times
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