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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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Justine
4 days ago
Definitely A, those slivers are annoying!
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Leana
9 days ago
Surprised to see slivers can be such a problem!
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Sharita
14 days ago
I disagree, cell alignment might be better for this.
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Annice
19 days ago
A) Setting an XY tolerance is the way to go!
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Omer
24 days 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
30 days 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
1 month 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
1 month ago
I think I remember something about XY tolerance being important for avoiding those slivers. It might help with the precision of the overlay.
upvoted 0 times
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