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Exam 400-007 topic 1 question 106 discussion

Actual exam question from Cisco's 400-007
Question #: 106
Topic #: 1
[All 400-007 Questions]

A legacy enterprise is using a Service Provider MPLS network to connect its head office and branches. Recently, they added a new branch to their network. Due to physical security concerns, they want to extend their existing IP CCTV network of the head office to the new branch, without any routing changes in the network. They are also under some time constraints. What is the best approach to extend the existing IP CCTV network to the new branch, without incurring any IP address changes?

  • A. GRE
  • B. L2TPv3
  • C. VXLAN
  • D. EoMPLS
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Suggested Answer: B 🗳️
by biddid2 at March 20, 2023, 3:28 p.m.

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bdp123
Highly Voted 4 months, 3 weeks ago
Selected Answer: B
no IP address changes or routing changes https://networklessons.com/cisco/ccie-routing-switching-written/l2tpv3-layer-2-tunnel-protocol-version-3
upvoted 8 times
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sandccie
Most Recent 1 month, 2 weeks ago
Selected Answer: A
A. GRE is as simple if not simpler than L2TPv3. GRE also supports multicast which may be required for IP CCTV network.
upvoted 1 times
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biddid2
6 months, 1 week ago
Selected Answer: B
B) May be quicker, no need ISP to take action
upvoted 2 times
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biddid2
6 months, 1 week ago
Selected Answer: D
A) cannot B) don't know~ don't want to pay MPLS? C) too expensive for switches and time consuming to build D) I think this more appropriate as they have MPLS already. https://lists.archive.carbon60.com/cisco/nsp/117377
upvoted 3 times
Jentti
3 months, 3 weeks ago
Having SP MPLS VPN does not mean you can expose the MPLS data plane. It would have to be CSC to support MPLS-labeling from the CE router.
upvoted 1 times
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