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Exam 400-007 topic 1 question 247 discussion

Actual exam question from Cisco's 400-007
Question #: 247
Topic #: 1
[All 400-007 Questions]



Refer to the exhibit. Company XYZ must design a DMVPN tunnel between the three sites. Chicago is going to act as the NHS and the company wants DMVPN to detect peer endpoint failures. Which technology should be used in the design?

  • A. VPLS
  • B. IP SLA
  • C. GRE
  • D. L2TPv3
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Suggested Answer: B 🗳️

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kalulosu
4 months, 4 weeks ago
Selected Answer:
I think ans is B. IP SLAs (IP Service Level Agreements) provide a mechanism to monitor network performance and trigger actions when certain conditions are not met. in DMVPN designs, IP SLAs can be used to ensure that peer endpoint failures can be quickly detected and necessary countermeasures can be taken.
upvoted 1 times
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4f12874
1 year ago
Selected Answer: B
Detecting peer endpoint failures in DMVPN (Dynamic Multipoint Virtual Private Network) involves monitoring the state of the underlying tunnels and implementing mechanisms to identify when a peer endpoint becomes unreachable: Implement IP SLA probes from local routers to the remote peer endpoints.
upvoted 2 times
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bdp123
1 year, 2 months ago
Selected Answer: B
tunnel keepalives are not supported with tunnel protection, VRF, mGRE, or NX-OS. I would think all DMVPN deployments would use IPSEC for protection (although DMVPN does not require this)
upvoted 3 times
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Rollizo
1 year, 5 months ago
Selected Answer: C
Could be GRE, because you can implement keepalive inside the tunnel to check the peer reachability
upvoted 1 times
i9t6
8 months ago
it is not https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sec_conn_dmvpn/configuration/xe-16/sec-conn-dmvpn-xe-16-book/sec-conn-dmvpn-dmvpn.html#GUID-7220ED1F-A67D-43DC-8D2D-E8E73E9D2162
upvoted 1 times
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ZHICHENG
1 year, 7 months ago
Selected Answer: B
“detect peer endpoint failures”,SLA is ok
upvoted 1 times
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A (35%)
C (25%)
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