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Nokia 4A0-102 Exam - Topic 4 Question 94 Discussion

Click the exhibit.Given that ISP 1 and ISP 2 are Tier 2 providers, and that ISP 3 and ISP 4 are Tier 1 providers, what is the most likely relationship between ISP 1 and the other ISPs?
B) ISP 1 has a peering relationship with ISP 2 and a transit relationship with ISP 3.
A) ISP 1 has a peering relationship with ISP 2 and ISP 4.
C) ISP 1 has a peering relationship with ISP 2 and ISP 3.
D) ISP 1 has a transit relationship with ISP 2 and ISP 4.
E) ISP 1 has a transit relationship with ISP 2 and a peering relationship with ISP 3.

Nokia 4A0-102 Exam - Topic 4 Question 94 Discussion

Actual exam question for Nokia's 4A0-102 exam
Question #: 94
Topic #: 4
[All 4A0-102 Questions]

Click the exhibit.

Given that ISP 1 and ISP 2 are Tier 2 providers, and that ISP 3 and ISP 4 are Tier 1 providers, what is the most likely relationship between ISP 1 and the other ISPs?

Show Suggested Answer Hide Answer
Suggested Answer: B

by Jennifer at May 03, 2026, 03:22 PM

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Lynsey
3 days ago
I feel like A makes sense too. Peering with Tier 1 is common.
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Lauryn
8 days ago
This question is tricky! I think B could be right.
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Jacqueline
13 days ago
I’m with B. Transit with ISP 3 fits the Tier 2 role.
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Stephaine
18 days ago
E is interesting, but I think it’s unlikely for ISP 1 to transit with ISP 2.
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Keva
23 days ago
D seems plausible, but I doubt ISP 1 would transit with Tier 1.
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Paulene
28 days ago
I lean towards C. ISP 1 needs connections with both.
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Deonna
1 month ago
I feel like A makes sense too. Peering with Tier 1 is common.
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Elly
1 month ago
This question is tricky! I think B could be right.
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Gerald
1 month ago
But wouldn’t ISP 1 need to pay for transit with ISP 3?
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Yolande
2 months ago
Totally agree with B, that’s how it usually works!
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Melina
2 months ago
Wait, how can ISP 1 peer with both ISP 3 and ISP 2? Seems off.
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Lucia
2 months ago
I think B makes the most sense, transit with ISP 3.
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Cortney
2 months ago
ISP 1 and ISP 2 are both Tier 2, so they likely peer.
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Annamae
2 months ago
I think the answer might be B, but I’m not completely confident. I remember that Tier 2s often peer with each other and transit through Tier 1s.
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Justine
4 months ago
I’m a bit confused about the Tier 1 and Tier 2 distinctions. Does that mean ISP 1 can only transit through Tier 1 providers?
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Micheline
4 months ago
This question feels similar to one we practiced where we had to identify relationships between ISPs. I think ISP 1 would likely peer with ISP 2 since they're both Tier 2.
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Breana
4 months ago
I remember studying the differences between peering and transit relationships, but I'm not sure how they apply here.
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