Exam EAPA_2025 Topic 3 Question 29 Discussion

Actual exam question for Esri's EAPA_2025 exam
Question #: 29
Topic #: 3
A GIS analyst has three elevation rasters from which to create a mosaic dataset. The maximum elevation is
1,200 ft, and the minimum elevation is 300 ft. After the mosaic dataset is created and the values are inspected in the table of contents, the maximum and minimum elevation value are shown to be 3.48e+38 and 3.48e-38 respectively.
What is causing this issue?

Suggested Answer: B Vote an answer

The extremely large and small values (3.48e+38 and 3.48e-38) indicate that valid statistics (min and max values) have not been calculated for the mosaic dataset. Without statistics, ArcGIS assigns default extreme placeholder values. Running the "Build Statistics" tool will calculate the correct min and max elevation values.
* Color balance (Option A) affects display but not data statistics.
* Overviews (Option C) improve display performance but do not affect statistics calculation.
Therefore, the correct answer is B.
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by Wanda at Jul 23, 2026, 08:12 AM

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