GISP Practice Questions
1. Formula to conver Degrees/Minutes/ Seconds of latitude in the Southern Hemisphere to
decimal degrees: Divide the Seconds by 3600, divide the Minutesby 60, then add those values
to the degrees, i.e.
(Deg+(Min/60)+(Sec/3600))*-1
2. Photo-identifiable field points are surveyed and the root-mean square errorbetween the
image and the photo ID points is computed: Horizontal accuracy of an ortho-rectified aerial
image
3. Most common statistical method to determine the attribute accuracy of a raster-derived
land use/land cover map: Confusion Matrix based on ground truthing a stratified random
sample of polygons
4. Cost of primary storage, ease of access to historical data, fast access tothe most important
data: Reasons for implementing a data archiving system
5. Extracts features and their attributes from one layer using a polygon fromanother as the
boundary of the output: Clip
6. Builds new features by splitting overlapping features and combining at-tributes where the
features overlap: Union
7. Appends together layers of adjoining area: Merge
8. Determining which background data shown on the paper maps is the most accurate for
georeferencing and ability to understand the notations made and to interpret the attributes for
each feature: Considerations for digitizing hard copymaps to GIS
9. Using templates or prescribed schemas for feature creation to ensure dataquality: Most
important factors in determining the accuracy of resulting data
10. How far the object is away from the reference object: Distance
11. Exact distance between two coordinates: Euclidean distance
12. Vertical distance plus horizontal distance: Manhattan distance
13. An object that is located inside the reference object: Internal direction
14. An object is located outside of the reference object: External direction
15. A set of rules and behaviors that model how points, lines, and polygonsshare geometry.:
Topology
16. Basic properties and processes for a set of spatial features: Spatial model
17. Points, lines and polygons: Vector
18. Rectangular arrays of regularly spaced square grids: Raster
19. Object oriented spatial model that includes feature classes, feature datasets, nonspatial
, tables, topology, relationship classes, and geometricnetworks.: Geodatabase
20. Addresses the concept that the world is constantly changing and thatmaps are static.:
Temporal
21. All geospatial data is taken from a 3D globe and transferred to a 2D surfacethrough spatial
transformations and can be distorted: Imprecision
22. GIS data that was collected at a certain date may already be out of date.: -
Uncertainty
23. The shape that the surface of the Earth takes on with gravitation androtation: Geoid
24. Mathematically defined surfaces that approximates the geoid and is thetruest figure of
Earth: Reference ellipsoid
25. Formed when an ellipsoid is rotated about its minor axis: Oblate ellipsoid
26. Coordinate-based local, regional, or global system used to local geograph-ical entities:
Spatial Reference System/ Coordinate Reference System
27. A three-demenisional coordinate system with a well defined origin and three orthogonal
coordinate axes (X,Y,Z): International Terrestrial Reference Sys-tem
28. Transforms coordinates from a curved Earth to a flat map: Map Projection
29. Provides a reference frame for coordinates on Earth: Horizontal datum
30. Reference point for elevations of surfaces and features on Earth: Verticaldatum
31. Gravity based geodetic datum in North America: NAVD88
32. A point of reference: Datum
33. World Geodetic System. The reference coordinate system used by theGlobal Positioning
System: WGS84
34. allowable range for x and y coordinates for m and z values.: Spatial domain
35. The property of area for a parcel polygon may be considered...: Precise andaccurate
36. The coordinate pair type used to build curvature within a line in vector datamodels:
Vertices
37. The difference between surveying and mapping and GIS: Spatial Analysis
38. The mathematical model related to real world features: Datum
39. Used to align an unreferenced dataset with one that has spatial referenceinformation:
Georeferencing
40. Common locations used in aligning two datasets: Control Points
41. The darker contour lines on contour maps: Index Contours
42. Inherently suggests pattern in the phenomena represented: Maps
1. Formula to conver Degrees/Minutes/ Seconds of latitude in the Southern Hemisphere to
decimal degrees: Divide the Seconds by 3600, divide the Minutesby 60, then add those values
to the degrees, i.e.
(Deg+(Min/60)+(Sec/3600))*-1
2. Photo-identifiable field points are surveyed and the root-mean square errorbetween the
image and the photo ID points is computed: Horizontal accuracy of an ortho-rectified aerial
image
3. Most common statistical method to determine the attribute accuracy of a raster-derived
land use/land cover map: Confusion Matrix based on ground truthing a stratified random
sample of polygons
4. Cost of primary storage, ease of access to historical data, fast access tothe most important
data: Reasons for implementing a data archiving system
5. Extracts features and their attributes from one layer using a polygon fromanother as the
boundary of the output: Clip
6. Builds new features by splitting overlapping features and combining at-tributes where the
features overlap: Union
7. Appends together layers of adjoining area: Merge
8. Determining which background data shown on the paper maps is the most accurate for
georeferencing and ability to understand the notations made and to interpret the attributes for
each feature: Considerations for digitizing hard copymaps to GIS
9. Using templates or prescribed schemas for feature creation to ensure dataquality: Most
important factors in determining the accuracy of resulting data
10. How far the object is away from the reference object: Distance
11. Exact distance between two coordinates: Euclidean distance
12. Vertical distance plus horizontal distance: Manhattan distance
13. An object that is located inside the reference object: Internal direction
14. An object is located outside of the reference object: External direction
15. A set of rules and behaviors that model how points, lines, and polygonsshare geometry.:
Topology
16. Basic properties and processes for a set of spatial features: Spatial model
17. Points, lines and polygons: Vector
18. Rectangular arrays of regularly spaced square grids: Raster
19. Object oriented spatial model that includes feature classes, feature datasets, nonspatial
, tables, topology, relationship classes, and geometricnetworks.: Geodatabase
20. Addresses the concept that the world is constantly changing and thatmaps are static.:
Temporal
21. All geospatial data is taken from a 3D globe and transferred to a 2D surfacethrough spatial
transformations and can be distorted: Imprecision
22. GIS data that was collected at a certain date may already be out of date.: -
Uncertainty
23. The shape that the surface of the Earth takes on with gravitation androtation: Geoid
24. Mathematically defined surfaces that approximates the geoid and is thetruest figure of
Earth: Reference ellipsoid
25. Formed when an ellipsoid is rotated about its minor axis: Oblate ellipsoid
26. Coordinate-based local, regional, or global system used to local geograph-ical entities:
Spatial Reference System/ Coordinate Reference System
27. A three-demenisional coordinate system with a well defined origin and three orthogonal
coordinate axes (X,Y,Z): International Terrestrial Reference Sys-tem
28. Transforms coordinates from a curved Earth to a flat map: Map Projection
29. Provides a reference frame for coordinates on Earth: Horizontal datum
30. Reference point for elevations of surfaces and features on Earth: Verticaldatum
31. Gravity based geodetic datum in North America: NAVD88
32. A point of reference: Datum
33. World Geodetic System. The reference coordinate system used by theGlobal Positioning
System: WGS84
34. allowable range for x and y coordinates for m and z values.: Spatial domain
35. The property of area for a parcel polygon may be considered...: Precise andaccurate
36. The coordinate pair type used to build curvature within a line in vector datamodels:
Vertices
37. The difference between surveying and mapping and GIS: Spatial Analysis
38. The mathematical model related to real world features: Datum
39. Used to align an unreferenced dataset with one that has spatial referenceinformation:
Georeferencing
40. Common locations used in aligning two datasets: Control Points
41. The darker contour lines on contour maps: Index Contours
42. Inherently suggests pattern in the phenomena represented: Maps
