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Exam 300-410 topic 1 question 478 discussion

Actual exam question from Cisco's 300-410
Question #: 478
Topic #: 1
[All 300-410 Questions]

Refer to the exhibit.



An organization is installing a new L3 MPLS link to establish DMVPN Phase 2 tunnels between the hub and two spoke routers. Which additional configuration should the engineer implement on each device to achieve optimal routing between the spokes?

  • A.
  • B.
  • C.
  • D.
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by inteldarvid at Aug. 10, 2023, 1:02 a.m.

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DenskyDen
Highly Voted 1 year, 8 months ago
Selected Answer: B
Answer is B. The question says its trying to establish a DMVPN Phase 2. This means we need to remove the static configuration of tunnel destination from the spokes and configure multipoint GRE.
upvoted 11 times
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jansan55
Highly Voted 1 year, 8 months ago
Selected Answer: B
My choice: answer B There is no need for tunnel destination and we need gre multipoint tunnel mode The OSPF priority of hub must be higher than the priority of spokes. A good source: https://networklessons.com/cisco/ccie-routing-switching/dmvpn-phase-2-basic-configuration https://networklessons.com/cisco/ccie-routing-switching/dmvpn-phase-2-ospf-routing
upvoted 6 times
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AonDuine
Most Recent 7 months, 2 weeks ago
Selected Answer: B
Answer is B. In Phase 2 there is no specific tunnel destination IP
upvoted 2 times
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[Removed]
9 months, 1 week ago
Selected Answer: B
B is corerct
upvoted 1 times
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kson
11 months, 1 week ago
Selected Answer: B
I agree, B is correct.
upvoted 3 times
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[Removed]
1 year, 3 months ago
Selected Answer: B
Agree phase 2 requires GRE Multipoint. OSPF point to multipoint should also be configured in this topology so can see why D would also be an answer.
upvoted 3 times
bk989
8 months ago
no it shouldn't The default interface type is P2P if we change interface type to broadcast we don't need to define it as P2MP
upvoted 1 times
bk989
8 months ago
the default OSPF tunnel interface is P2P if we change interface type to broadcast we don't need to define it as P2MP
upvoted 1 times
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seal2
1 year, 7 months ago
Selected Answer: B
agree, B is required for a good configuration
upvoted 2 times
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alex711
1 year, 8 months ago
Selected Answer: B
I agree, B is correct.
upvoted 2 times
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Muste
1 year, 8 months ago
Selected Answer: B
answer is B
upvoted 2 times
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inteldarvid
1 year, 8 months ago
Selected Answer: D
The give anwser is correct
upvoted 1 times
dapardo
11 months, 2 weeks ago
Sorry, D would be good only for scenarios in where phase 1 is used. The question states phase 2 is the one used.
upvoted 2 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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