ENVSOCTY 3GV3 EXAM QUESTIONS
AND ANSWERS GRADED A+ 2025/2026
Why build a Geoprocessing Model? (5) - ANS - executing single GIS tools is a practical way to
accomplish certain GIS tasks
- often need to run a sequence of tools to solve a problem (GIS is synonymous with workflows,
which can be simple to complex)
- saves time
- easily validated
- tells the computer how to process a sequence of steps
ModelBuilder is designed to... - ANS - automate workflow processes
- create custom tools for problem solving
- combines ant existing tools from tools into a model
- visual programming language
- models are stored in a project or custom toolbox
8 Steps to Creating and Running a Model - ANS 1. Create a new model
2. Update properties
3. Add data and tools to the model
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,4. Create connectors and fill in tool parameters
5. Validate the model
6. Save the model
7. Run the model
8. Examine the results
Parameters - ANS the inputs and outputs of any tool
- either required or optional (required must be set or tool will not run in the model)
When a model is run, output data are created for... - ANS each process in the model
- except for "final" output, all derived data are set as intermediate by default
Intermediate Data - ANS should be deleted after the model is run
You can preserve intermediate data by (3): - ANS - running the model from the ModelBuilder
window
- removing the intermediate flag by right-clicking on the derived variable and making sure that
Delete Intermediate Data is not checked
- Making intermediate data model parameters
Make sure that your model is easy to read (3): - ANS - layout is simple, logical, and aligned
- add labels for additional clarity
- rename elements as necessary to ensure clarity (i.e. not cryptic)
Caveats to Models (2): - ANS - simple models are tied 100% to your data
- models need to be parameterized to make them generalizable
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Points, lines, and polygons exist within a... - ANS continuous coordinate space
Point - ANS one X,Y coordinate pair
Line - ANS set of connected X,Y coordinate pairs
Area - ANS closed loop of X,Y coordinate pairs
Spatial Features: High level of precision in terms of ____, _____, and ____ of features. -
ANS position, length, and area
Georelational Data Model (2) - ANS - attributes and feature geometries are stored in different
files
- linked between attributes and their geometric are maintained using feature identifiers (FID)
Feature Identifiers - ANS FID - links between attributes and their geometric are maintained
using feature identifiers (FID)
Name 2 examples of georelational data models - ANS - coverage (ArcInfo)
- shapefile (ArcView)
Coverage (5): - ANS - developed for ArcInfo, 1980
- topologically linked geographic features and their attribute data
- represents a single theme or layer
- primary features are nodes, arcs, and polygons
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
AND ANSWERS GRADED A+ 2025/2026
Why build a Geoprocessing Model? (5) - ANS - executing single GIS tools is a practical way to
accomplish certain GIS tasks
- often need to run a sequence of tools to solve a problem (GIS is synonymous with workflows,
which can be simple to complex)
- saves time
- easily validated
- tells the computer how to process a sequence of steps
ModelBuilder is designed to... - ANS - automate workflow processes
- create custom tools for problem solving
- combines ant existing tools from tools into a model
- visual programming language
- models are stored in a project or custom toolbox
8 Steps to Creating and Running a Model - ANS 1. Create a new model
2. Update properties
3. Add data and tools to the model
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,4. Create connectors and fill in tool parameters
5. Validate the model
6. Save the model
7. Run the model
8. Examine the results
Parameters - ANS the inputs and outputs of any tool
- either required or optional (required must be set or tool will not run in the model)
When a model is run, output data are created for... - ANS each process in the model
- except for "final" output, all derived data are set as intermediate by default
Intermediate Data - ANS should be deleted after the model is run
You can preserve intermediate data by (3): - ANS - running the model from the ModelBuilder
window
- removing the intermediate flag by right-clicking on the derived variable and making sure that
Delete Intermediate Data is not checked
- Making intermediate data model parameters
Make sure that your model is easy to read (3): - ANS - layout is simple, logical, and aligned
- add labels for additional clarity
- rename elements as necessary to ensure clarity (i.e. not cryptic)
Caveats to Models (2): - ANS - simple models are tied 100% to your data
- models need to be parameterized to make them generalizable
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Points, lines, and polygons exist within a... - ANS continuous coordinate space
Point - ANS one X,Y coordinate pair
Line - ANS set of connected X,Y coordinate pairs
Area - ANS closed loop of X,Y coordinate pairs
Spatial Features: High level of precision in terms of ____, _____, and ____ of features. -
ANS position, length, and area
Georelational Data Model (2) - ANS - attributes and feature geometries are stored in different
files
- linked between attributes and their geometric are maintained using feature identifiers (FID)
Feature Identifiers - ANS FID - links between attributes and their geometric are maintained
using feature identifiers (FID)
Name 2 examples of georelational data models - ANS - coverage (ArcInfo)
- shapefile (ArcView)
Coverage (5): - ANS - developed for ArcInfo, 1980
- topologically linked geographic features and their attribute data
- represents a single theme or layer
- primary features are nodes, arcs, and polygons
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
