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Esri EAPA_2025 Exam - Topic 7 Question 13 Discussion

A GIS analyst is trying to conduct overlay analysis using the Union tool but is unable to run the tool due to a red X in one of the parameters.
B) The environment settings for Processing Extent do not include the participating features.
A) The input features do not geometrically intersect.
C) Both input features are not polygon feature classes.

Esri EAPA_2025 Exam - Topic 7 Question 13 Discussion

Actual exam question for Esri's EAPA_2025 exam
Question #: 13
Topic #: 7
[All EAPA_2025 Questions]

A GIS analyst is trying to conduct overlay analysis using the Union tool but is unable to run the tool due to a red X in one of the parameters.

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Suggested Answer: B

by Charlette at Nov 20, 2025, 02:03 AM

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Oren
2 months ago
I lean towards A too. Overlapping is key for Union tool.
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Cristal
2 months ago
I feel like B is a common mistake. Check those settings first!
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Millie
2 months ago
True, but if they’re not polygons, it’s definitely C.
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Milly
2 months ago
What about B? The extent settings could be wrong.
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Chu
3 months ago
I agree, A makes sense. No intersection means no analysis.
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Jeannetta
3 months ago
I think it's A. The features might not overlap.
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Dominque
3 months ago
I doubt it's just a geometry issue; could be something else too.
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Rashad
3 months ago
Wait, are you sure both features are polygons? That seems odd.
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Melodie
4 months ago
I think it could also be the processing extent settings.
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Whitney
4 months ago
Definitely check if both inputs are polygons!
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Dick
4 months ago
A red X usually means there's a geometry issue.
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Wilda
4 months ago
Ugh, environment settings are the worst. That's probably the culprit here.
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Eve
4 months ago
Haha, I bet the analyst is just trying to union a point and a line. No wonder it's not working!
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Florencia
5 months ago
The Union tool is tricky, but I'm pretty sure the red X is because the input features don't geometrically intersect. Gotta check that first.
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Lonna
5 months ago
I'm not entirely sure, but I feel like both inputs need to be polygons for the Union tool to work, which makes me think option C could be right.
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Bettye
5 months ago
I think I saw a similar question where the processing extent was the issue, so I'm leaning towards option B.
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Patrick
5 months ago
I remember something about the Union tool needing features to intersect, so maybe option A is correct?
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Gwenn
5 months ago
Hmm, this is a tricky one. I'm going to start by checking the geometry of the input features to see if they actually intersect, as option A mentions. If that's not the issue, I'll dig into the environment settings and make sure the processing extent is set up properly.
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Willow
5 months ago
Ah, the old Union tool issue. I've run into this before. My first step would be to confirm the input features are polygons, as option C suggests. If that checks out, I'll look into the processing extent settings to make sure they're set up correctly.
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Ria
6 months ago
I think the problem is that the input features are not polygon feature classes. That's probably the issue.
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Odelia
6 months ago
The input features definitely intersect, so it's gotta be the environment settings.
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Lorita
6 months ago
I’m a bit confused, but I recall that if there’s a red X, it might be a geometry issue, so A seems plausible too.
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Lizette
7 months ago
Ugh, I hate when this happens. Okay, let me think - it could be that one of the input features isn't a polygon, so I'll need to verify the feature types. If that's not it, I'll try playing around with the environment settings to see if that fixes the problem.
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Claudia
7 months ago
Hmm, this looks tricky. I'd start by checking the geometry of the input features to make sure they actually intersect. If that's not the issue, I'll double-check the environment settings to ensure the processing extent covers the right area.
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Edgar
1 month ago
Don't forget about the environment settings!
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Dino
1 month ago
What if they’re not polygon feature classes?
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Edward
2 months ago
Yeah, that’s a good first step.
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Jaime
6 months ago
Have you checked if the input features intersect?
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Van
6 months ago
True, that could cause problems too.
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