[Mar-2026] EAPA_2025 Dumps Full Questions - Associate Level Exam Study Guide
Exam Questions and Answers for EAPA_2025 Study Guide
NEW QUESTION # 39
A GIS analyst must identify when and where bicycle accidents occur throughout a specific city within a one- year period. The data provided includes bicycle accidents for the entire state and spans a three-year period.
The analyst wants to limit visibility and geoprocessing to the features of interest.
Which workflow should the analyst follow?
- A. Apply a display filter to the layer
- B. Apply a definition query to the layer
- C. Zoom to the study area in the map
Answer: B
Explanation:
Definition queries limit the dataset used for both display and geoprocessing by applying SQL-based expressions to filter the data. This allows the GIS analyst to restrict all map display, analysis, and processing operations to only the records that meet the defined criteria (city and one-year period).
* Display filters only limit what is visually shown but do not impact geoprocessing.
* Zooming merely changes the map extent but has no filtering effect on data.
* Definition queries fully restrict the dataset for both visualization and processing.
Therefore, the correct answer is A.
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NEW QUESTION # 40
In ArcGIS Pro, which tool should be used to change the coordinate system of a dataset to a different coordinate system?
- A. Convert Coordinate Notation
- B. Project
- C. Define Projection
Answer: B
Explanation:
The Project tool is used to permanently convert data from one coordinate system to another, recalculating coordinates to match the new spatial reference.
* Define Projection assigns a spatial reference to datasets that do not have one but does not transform coordinates.
* Convert Coordinate Notation converts coordinate formats (such as MGRS, UTM, DMS) but not spatial references.
Therefore, the correct answer is B.
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NEW QUESTION # 41
A GIS analyst pulls in an image service from ArcGIS Online, which should contain a slope map, a hillshade map, an aspect map, a contour map, and a terrain map. However, the analyst only sees the terrain map.
How should the analyst access the other maps?
- A. Change band orders under symbology
- B. Change the source in the layer properties
- C. Switch to a different processing template in the layer properties
Answer: C
Explanation:
Many image services include multiple processing templates that provide different visualizations (e.g., slope, hillshade, aspect). The analyst can switch between these templates within the layer properties to access the various derivative products.
* Changing band order (Option A) affects multi-band imagery but won't expose separate processing templates.
* Changing the source (Option C) changes the entire dataset rather than switching between available templates.
Therefore, the correct answer is B.
NEW QUESTION # 42
A GIS analyst is reviewing the work of an intern and realizes that the intern added feature attribute information directly to the attribute table. Many of the features have no geometry and do not display on the map. The analyst uses Check Geometry to identify all features with null geometries.
Which method should the analyst use to allow adding the geometry to existing features so that they can be visualized in the map?
- A. Analysis > Tools (Geoprocessing) > Data Management > Features > Repair Geometry
- B. Analysis > Tools (Geoprocessing) > Data Management > Features > Add Geometry Attributes
- C. Edit > Modify (Modify Features) > Reshape > Replace Geometry
Answer: C
Explanation:
The Replace Geometry tool, accessed via Modify Features in the Edit tab, allows the user to assign or redraw geometry for existing features that are missing it (null shape). This allows previously non-spatial records to be given a spatial location, enabling visualization on the map.
* Repair Geometry is used to fix corrupt geometry but does not create new geometry for null shapes.
* Add Geometry Attributes calculates existing geometry fields but cannot generate geometry for empty features.
* Replace Geometry directly enables assigning missing shapes.
Therefore, the correct answer is B.
NEW QUESTION # 43
A GIS specialist is adding fields to an existing table using the Add Field geoprocessing tool to conduct analysis. The type of analysis requires numeric data that stores information to 4 decimal points.
Which field type and associated precision and scale meets these requirements?
- A. Float - Precision 4, Scale 4
- B. Long - Precision 4, Scale 4
- C. Double - Precision 3, Scale 4
Answer: C
Explanation:
Double field type supports high-precision floating-point numbers suitable for storing data with multiple decimal places. Precision controls the total number of digits; scale controls the number of digits to the right of the decimal.
* Float has lower precision and is not recommended for accurate decimal storage.
* Long is an integer type and cannot store decimals.
* Double with Precision 3 and Scale 4 allows storing up to 4 decimal places as required.
Therefore, the correct answer is B.
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NEW QUESTION # 44
In ArcGIS Pro, a GIS analyst adds a mosaic dataset to a map and notices that the entire mosaic area is covered with a black and white checkerboard.
Which tool should the analyst use to make the images visible in the map as part of the mosaic dataset?
- A. Repair Mosaic Dataset Paths
- B. Build Pyramids
- C. Define Overviews
Answer: A
Explanation:
The black-and-white checkerboard indicates that the mosaic dataset cannot locate the source rasters. Repair Mosaic Dataset Paths allows the analyst to correct the file paths if the rasters have been moved or renamed, thus restoring visibility.
* Define Overviews (Option A) creates reduced-resolution overviews for fast display but does not fix broken paths.
* Build Pyramids (Option B) builds pyramids for raster display performance but also requires valid data paths first.
Therefore, the correct answer is C.
NEW QUESTION # 45
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.
- A. Both input features are not polygon feature classes.
- B. The input features do not geometrically intersect.
- C. The environment settings for Processing Extent do not include the participating features.
Answer: C
Explanation:
In ArcGIS Pro, ared Xnext to a parameter in a geoprocessing tool typically indicates an invalid input due to conflicts with the current environment settings. One of the most common causes is when theProcessing Extentenvironment setting is configured in a way thatexcludesthe actual input features.
TheUniontool requires that input features fall within the set extent. If the Processing Extent does not cover any part of one or more input features, they are considered invalid and flagged with a red X, preventing the tool from running.
The software checks whether all input features are accessible within the defined extent. If they are not, this pre-validation error is triggered-even if the inputs are valid in terms of geometry or feature type.
* Option A is incorrect because geometrical intersection is not a requirement for Union to run-it simply overlays features and includes all areas.
* Option C is also incorrect, as the Union tool does indeed require polygon feature classes, but if incorrect feature types are used, a different error (not a red X related to extent) is shown.
This confirms that the red X in this scenario is caused by the Processing Extent settings not including the input features, making the correct answer B.
NEW QUESTION # 46
A GIS specialist is creating a spatial map series for features that vary greatly in size.
Which scale bar Fitting Strategy will enable logical scale units specification and relative width among the varying maps?
- A. Adjust division value
- B. Adjust number of divisions
- C. Adjust width
Answer: C
Explanation:
The "Adjust width" fitting strategy automatically adjusts the physical width of the scale bar to fit the map scale. This ensures that the scale bar remains logical and proportional across maps of different extents in the map series.
* Adjust division value (Option A) modifies the distance represented by each division but may produce inconsistent scale bar sizes.
* Adjust number of divisions (Option C) changes the count of divisions rather than adjusting for proportional display across maps.
Therefore, the correct answer is B.
NEW QUESTION # 47
A cartographer is creating a 3D scene of campgrounds in a national park. The facilities on the campground have been symbolized using simple 2D point symbols. The cartographer needs to apply a realistic 3D symbology to the facilities features without using a rule package.
Which action should the cartographer take to symbolize the campground facilities?
- A. Apply a procedural marker symbology
- B. Use a 3D model marker symbology
- C. Change the symbology to a picture fill
Answer: B
Explanation:
3D model marker symbology allows you to directly assign realistic 3D models (like campgrounds, facilities, buildings) to point features in a 3D scene without requiring a rule package. This makes it the most efficient and visually accurate option for realistic 3D representation.
* Procedural marker symbology (Option A) requires rule packages.
* Picture fill (Option B) applies to polygon fills, not 3D point feature symbology.
Therefore, the correct answer is C.
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NEW QUESTION # 48
A GIS technician has two feature classes: Sites and Buildings. The technician needs to assign the building name to the site if they intersect when adding/updating site features and wants to use attribute rules to do this.
Which attribute rule type should the analyst use to accomplish this task?
- A. Calculation rule
- B. Constraint rule
- C. Validation rule
Answer: A
Explanation:
Calculation rules automatically calculate attribute values based on spatial relationships, other attribute values, or predefined logic at the time of feature creation or update. In this scenario, the intersecting building name can be assigned automatically to the site feature using a calculation rule.
* Validation rules (Option A) check for rule compliance but don't assign values.
* Constraint rules (Option B) prevent invalid edits but do not calculate fields.
Therefore, the correct answer is C.
NEW QUESTION # 49
A GIS analyst has a standalone table that includes the change in population by county and a layer of counties.
Which method should the GIS analyst use to visualize the change using symbology?
- A. Relate the table and layer based on the county field.
- B. Add a spatial join between the table and layer.
- C. Join the table and layer based on the county field.
Answer: C
Explanation:
To visualize population change, the attribute (change in population) must be accessible to the county feature layer's symbology engine. A Join operation adds the table fields directly to the feature layer's attribute table based on a common key (county field), making the data available for symbology classification.
* Relate creates a temporary relationship but does not merge data for symbology purposes.
* Spatial Join is used when spatial relationships are needed; here, the relationship is attribute-based.
* Join correctly allows the standalone table values to drive symbology on the spatial features.
Therefore, the correct answer is B.
NEW QUESTION # 50
A GIS analyst has a buildings feature class. The analyst needs to show the type of building, such as commercial or residential, and extrude the buildings based on height.
Which symbology type should the analyst use to produce the required output?
- A. Attribute-driven
- B. Bivariate colors
- C. Dictionary
Answer: A
Explanation:
Attribute-driven symbology allows different fields to control different aspects of visualization. In this case, one field (building type) can control color or symbol category, while another field (building height) controls the 3D extrusion. Attribute-driven symbology is designed specifically for this type of multi-attribute control.
* Bivariate colors (Option B) map two numeric fields into a color grid but do not control extrusion.
* Dictionary symbology (Option C) applies rule-based symbology often used for military or complex symbols, not 3D extrusion.
Therefore, the correct answer is A.
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NEW QUESTION # 51
A GIS technician wants to perform spatial analysis for an area of interest extending in an east-to-west orientation. The technician needs to preserve the shape of the data.
Which projection should the technician use to minimize distortion?
- A. Transverse Mercator
- B. Lambert conformal conic
- C. Hotine oblique Mercator
Answer: B
Explanation:
Lambert Conformal Conic is best suited for regions that extend predominantly in an east-west direction. This projection minimizes distortion in shape (conformal property) for such areas and is widely used for mapping large areas like states, countries, or continents that are wider than they are tall.
* Transverse Mercator (Option A) is better for north-south-oriented regions.
* Hotine Oblique Mercator (Option C) is used for areas that are obliquely oriented along a particular great circle path.
Therefore, the correct answer is B.
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NEW QUESTION # 52
A GIS technician wants to publish a specific layer from a map to their organizational portal.
Which workflow would support this need?
- A. Share tab > Share As group > Web Map
- B. Contents pane > Right-click layer > Sharing > Share As Web Layer
- C. Share tab > Share As group > Web Layer > Publish Web Layer
Answer: B
Explanation:
When publishing a single layer, the most efficient method is to right-click directly on the layer in the Contents pane and select Sharing > Share As Web Layer. This focuses the publishing operation on the selected layer, reducing the risk of unintentionally publishing the entire map or unrelated content.
* Share As Web Layer (Option A) shares the entire map or selected layers but requires additional manual selection.
* Web Map (Option C) creates a web map (entire map document), not an individual layer.
Therefore, the correct answer is B.
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NEW QUESTION # 53
A GIS specialist creates a model tool to allow others to run analysis on their own data. When users open the model tool, they are unable to configure input data or output location.
How should the specialist expose this functionality to users?
- A. Right-click the model variables > Open > Properties
- B. Right-click the tool in the model > Create Variable > From Parameter
- C. Right-click the model variables > Parameter
Answer: C
Explanation:
To make variables editable by users when running a model, you must right-click the model variables and check "Parameter." This exposes the variable as an input or output parameter in the tool interface.
* Create Variable > From Parameter (Option A) is used when building the model, not when exposing variables.
* Open > Properties (Option C) accesses variable properties but does not expose parameters for tool users.
Therefore, the correct answer is B.
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NEW QUESTION # 54
A GIS specialist works for an electric company that is planning tree maintenance along power lines. The specialist wants to associate tree features with a geometry of "Point" and the power lines feature class in the utility network dataset with a geometry of "Polyline Z." All trees, regardless of height, should be joined if they are in the specified vicinity of the power lines.
- A. Within Clementini
- B. Within a distance 3D
- C. Within a distance
Answer: C
Explanation:
TheSpatial Jointool in ArcGIS Pro allows specifying aMatch Optionthat defines how spatial relationships between feature geometries are evaluated. In this scenario, the target and join features are of different geometry types-Points (trees) and Polylines (power lines)-so the appropriate match options are based on proximity rather than containment or other spatial relations.
* Within a distance: Matches features based on a planar search radius, ignoring elevation (Z-value), making it ideal for cases where all trees within a certain horizontal distance from power lines should be included, regardless of height.
* Within a distance 3D: Includes vertical (Z) differences in the search, which is unnecessary here since tree height shouldn't affect inclusion.
* Within Clementini: Refers to a topological boundary relationship and is only valid for comparisons involving polygons-not points vs polylines.
Thus, to includeall trees within a specified horizontal buffer of the power lines, theWithin a distance option is the correct one.
NEW QUESTION # 55
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