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Nokia 4A0-255 Exam - Topic 13 Question 82 Discussion

Refer to the exhibit that shows a demand matrix, a network topology with candidate links (in thick blue lines and dashed lines), the defined network in thick blue lines and the demand routing (colored numbers in the figure). Every link is 80 km long. Which of the following requirements is supported by this network design with the displayed demand routing?
A) 1+1 protection
B) Minimum cost design
C) Minimum latency
D) Resilience against two link faults

Nokia 4A0-255 Exam - Topic 13 Question 82 Discussion

Actual exam question for Nokia's 4A0-255 exam
Question #: 82
Topic #: 13
[All 4A0-255 Questions]

Refer to the exhibit that shows a demand matrix, a network topology with candidate links (in thick blue lines and dashed lines), the defined network in thick blue lines and the demand routing (colored numbers in the figure). Every link is 80 km long. Which of the following requirements is supported by this network design with the displayed demand routing?

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Suggested Answer: A

by Shayne at Jun 27, 2026, 11:00 AM

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Steffanie
2 days ago
I’m not convinced this is the best for minimum latency.
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Malcolm
7 days ago
Totally agree with 1+1 protection!
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Junita
12 days ago
Wait, can it really handle two link faults? That seems unlikely.
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Christene
18 days ago
I think it’s more about minimum cost design.
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Elinore
23 days ago
This design supports 1+1 protection for sure.
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Dexter
28 days ago
I feel like resilience against two link faults might be a possibility, but I need to double-check how the demand routing is set up in the exhibit.
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Laura
1 month ago
I vaguely recall that minimum latency focuses on the shortest path, but I can't tell if this network design prioritizes that or something else.
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Thomasena
1 month ago
This question seems similar to one we practiced where we had to identify the best routing strategy based on cost. I wonder if minimum cost design is the right answer here.
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Anastacia
1 month ago
I think I remember that 1+1 protection means having a backup link for every primary link, but I'm not sure if that's what this design supports.
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