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Cisco 400-007 Exam - Topic 5 Question 77 Discussion

A network engineering team is in the process of designing a lab network for a customer demonstration. The design engineer wants to show that the resiliency of the MPLS traffic Engineering Fast Reroute solution has the same failover/failback times as a traditional SONET/SDH network (around 50MSEC). In order to address both link failure and node failure within the lab typology network, which type of the MPLS TE tunnels must be considered for this demonstration?
D) next-next-hop (NNHop) tunnel
A) TE backup tunnel
B) Next-hop (NHop) tunnel
C) FRR Backup tunnel

Cisco 400-007 Exam - Topic 5 Question 77 Discussion

Actual exam question for Cisco's 400-007 exam
Question #: 77
Topic #: 5
[All 400-007 Questions]

A network engineering team is in the process of designing a lab network for a customer demonstration. The design engineer wants to show that the resiliency of the MPLS traffic Engineering Fast Reroute solution has the same failover/failback times as a traditional SONET/SDH network (around 50MSEC). In order to address both link failure and node failure within the lab typology network, which type of the MPLS TE tunnels must be considered for this demonstration?

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Suggested Answer: D

by Erick at May 16, 2026, 06:07 PM

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Izetta
3 days ago
I think the answer is C) FRR Backup tunnel. It’s designed for fast reroute.
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Kassandra
8 days ago
Next-hop tunnel? Not sure that’s the right choice for resiliency.
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Paris
13 days ago
I agree, FRR Backup is the way to go here!
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Terina
19 days ago
Wait, are we sure about the 50MSEC timing? Seems a bit optimistic.
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Leana
24 days ago
I think the TE backup tunnel could work too.
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Erasmo
29 days ago
Definitely looking at the FRR Backup tunnel for this.
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Kimbery
1 month ago
NHop tunnels are cool, but they don’t provide the same failover benefits.
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Eveline
1 month ago
I’m surprised this is even a question, isn’t FRR the standard for MPLS?
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Salome
1 month ago
Wait, are we sure it’s not A? Backup tunnels are usually reliable too.
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Chantay
2 months ago
Totally agree, C makes the most sense here!
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Lindsey
2 months ago
I think the answer is C) FRR Backup tunnel.
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Jacqueline
2 months ago
I think the Next-hop tunnel was mentioned in a practice question, but I don’t remember it being linked to failover times like the FRR Backup tunnel.
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Merilyn
2 months ago
I feel like the TE backup tunnel might be relevant too, but I can't recall the exact differences between them right now.
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Jolene
2 months ago
I remember discussing the FRR Backup tunnel in relation to fast reroute, so I’m leaning towards option C, but I could be wrong.
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Lorrine
4 months ago
I think we practiced something similar in class about MPLS TE tunnels, but I'm not entirely sure which one is specifically for failover.
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