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Nokia 4A0-100 Exam - Topic 8 Question 125 Discussion

Which of the following statements about IP route summarization is FALSE?
A) It divides a customer IP address pool into smaller portions, each of which is assigned to a different subnet.
B) It reduces the size of the routers' forwarding tables.
C) It improves scalability of the network.
D) It increases routing advertisement stability.

Nokia 4A0-100 Exam - Topic 8 Question 125 Discussion

Actual exam question for Nokia's 4A0-100 exam
Question #: 125
Topic #: 8
[All 4A0-100 Questions]

Which of the following statements about IP route summarization is FALSE?

Show Suggested Answer Hide Answer
Suggested Answer: A

Route summarization (a.k.a. supernetting) is the process of combining multiple contiguous subnets into a single summarized route, which:

Reduces routing table entries

Enhances scalability and efficiency

Minimizes instability by localizing route changes

Option A is false because it describes subnetting, not summarization. Summarization works in the opposite direction -- combining smaller routes into a larger one.


Nokia IP Routing Guide -- Chapter: ''Route Summarization Techniques''

Cisco CCNA -- IP Routing Concepts

by Sharita at May 08, 2026, 04:59 AM

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Delisa
3 days ago
Good points! A is definitely the odd one out here.
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Garry
8 days ago
I’m leaning towards A as well. It confuses the purpose of summarization.
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Gerry
13 days ago
Exactly, A just doesn’t fit the concept of summarization.
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Lucina
18 days ago
True, but it’s not always the case. A is definitely the clearer false statement.
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Delisa
23 days ago
But D makes sense in a way. Less routes can mean more stability.
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Garry
28 days ago
I feel like D could be misleading too. Stability isn't guaranteed.
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Gerry
1 month ago
I agree, A seems off. Summarization is about combining, not dividing.
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Lucina
1 month ago
I think option A is false. It doesn't divide the pool.
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Irma
1 month ago
I’m not so sure about D. Can it really increase stability?
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Eliz
2 months ago
Wait, I thought summarization could divide address pools?
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Lucy
2 months ago
B, C, and D are all true, so A is the odd one out.
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Angelica
2 months ago
I agree, A doesn't make sense in this context.
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Dierdre
2 months ago
A is definitely false. Summarization doesn't divide address pools.
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Dorcas
2 months ago
I vaguely recall that summarization is supposed to improve scalability, so maybe option C is the one that’s false?
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Keneth
4 months ago
I'm not entirely sure, but I feel like option D might be the false one since summarization can sometimes lead to instability in certain scenarios.
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Kenny
4 months ago
I remember practicing a question about summarization benefits, and I think it definitely helps with reducing forwarding table size.
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Kristofer
4 months ago
I think option A sounds a bit off because summarization usually combines routes rather than dividing them.
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