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Esri EAPA_2025 Exam - Topic 3 Question 21 Discussion

A GIS analyst performs an overlay operation between a city polygon layer and voting districts. The analyst observes multiple tiny slivers that are created because the boundaries of the city layer do not exactly overlap the boundaries of the voting district layer.Which environment variable should the analyst use to avoid this in the future?
A) Setting an XY tolerance
B) Using cell alignment
C) Setting an M tolerance value

Esri EAPA_2025 Exam - Topic 3 Question 21 Discussion

Actual exam question for Esri's EAPA_2025 exam
Question #: 21
Topic #: 3
[All EAPA_2025 Questions]

A GIS analyst performs an overlay operation between a city polygon layer and voting districts. The analyst observes multiple tiny slivers that are created because the boundaries of the city layer do not exactly overlap the boundaries of the voting district layer.

Which environment variable should the analyst use to avoid this in the future?

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Suggested Answer: A

by Aleisha at Jun 17, 2026, 02:48 PM

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Krissy
29 days ago
But what about cell alignment? It could also help with precision.
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Hubert
1 month ago
I agree, XY tolerance makes sense. It can prevent those overlaps.
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Gussie
1 month ago
I think setting an XY tolerance is the best option. It helps with those tiny slivers.
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Kimberlie
1 month ago
Not sure if M tolerance is relevant here...
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Justine
2 months ago
Definitely A, those slivers are annoying!
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Leana
2 months ago
Surprised to see slivers can be such a problem!
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Sharita
2 months ago
I disagree, cell alignment might be better for this.
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Annice
2 months ago
A) Setting an XY tolerance is the way to go!
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Omer
2 months ago
I definitely remember XY tolerance being a common solution for issues like this. It seems like the most straightforward option to prevent those tiny gaps.
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Rasheeda
3 months ago
I practiced a question similar to this, and I think M tolerance was mentioned, but I can't recall if it applies to slivers specifically.
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Hoa
3 months ago
I'm not entirely sure, but I feel like cell alignment could also play a role in how layers interact. Maybe it could help with the boundaries?
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Sherly
3 months ago
I think I remember something about XY tolerance being important for avoiding those slivers. It might help with the precision of the overlay.
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