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Nokia 4A0-105 Exam - Topic 5 Question 125 Discussion

Which of the following statements about Spanning Tree Protocol is true?
B) In the case where two switches have the same priority, the switch with the lowest MAC address becomes the root.
A) For the switches that are non-root or designated switches, the port with the highest combined cost to the root is the root port.
C) The switch port that is the greatest distance from the LAN to the root is the designated port.
D) All of the above.

Nokia 4A0-105 Exam - Topic 5 Question 125 Discussion

Actual exam question for Nokia's 4A0-105 exam
Question #: 125
Topic #: 5
[All 4A0-105 Questions]

Which of the following statements about Spanning Tree Protocol is true?

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Suggested Answer: B

by Reyes at May 05, 2026, 11:56 AM

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Asha
3 days ago
I’m confused. Can someone explain A?
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Paris
8 days ago
But A is definitely wrong. Cost isn’t about highest.
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Earleen
13 days ago
I like D too. They all fit the protocol.
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Stefania
18 days ago
C doesn’t sound right. Designated port isn’t about distance.
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Rosendo
23 days ago
I feel A is misleading. Root port isn’t highest cost.
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Ashley
28 days ago
I’m leaning towards D. All seem correct.
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Michael
1 month ago
Agreed, B makes sense. Priority rules!
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Tammara
1 month ago
I think B is true. Lowest MAC wins!
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Xenia
1 month ago
D sounds like a trap, but I think B is the only solid fact.
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Marsha
2 months ago
Wait, all of them can't be true, right?
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Marshall
2 months ago
C is definitely wrong, designated port isn't about distance.
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Janella
2 months ago
I disagree, A is misleading.
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Viola
2 months ago
B is true, lowest MAC gets priority!
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Tuyet
2 months ago
I’m leaning towards option D being correct, but I’m confused about the definitions of root and designated ports. I need to double-check my notes on that!
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Caprice
4 months ago
I feel like I've seen a question similar to this before, and I remember that the designated port is the one that connects to the LAN, not the greatest distance from it.
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Haley
4 months ago
I'm not entirely sure, but I remember something about root ports and costs. I thought the root port was the one with the lowest cost to the root, not the highest.
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Nakisha
4 months ago
I think option B sounds familiar because we talked about how MAC addresses are used as tie-breakers in the root election process.
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