GISP - Geographic Information Systems Professional Geospatial Data Fundamentals Questions and Answers

Question 1

A GIS analyst is working on a project that requires modeling continuous surface data, such as elevation and temperature gradients.
Which geospatial data model would be the most appropriate and efficient for this task?

Accepted Answer

Raster data model

Answer

Vector data model

Answer

Topological data model

Answer

Network data model

Question 2

A cartographer is creating a map of the continental United States for a textbook. The primary goal is to ensure that the relative sizes of the states are accurately represented for demographic comparisons. Which map projection property should be prioritized?

Accepted Answer

Equal-area

Answer

Conformal

Answer

Equidistant

Answer

Azimuthal

Question 3

Which of the following best describes the primary difference between a geoid and an ellipsoid in geodesy?

Accepted Answer

The geoid represents the true, irregular shape of the Earth based on its gravity field (approximating mean sea level), while the ellipsoid is a smooth, mathematically defined approximation of the Earth.

Answer

The geoid is a purely mathematical model, while the ellipsoid is based on physical measurements of the Earth's gravity.

Answer

The ellipsoid is used for horizontal datums, whereas the geoid is exclusively used for vertical datums.

Answer

The ellipsoid accounts for topographical features like mountains and valleys, while the geoid is a smoothed surface that ignores them.

Question 4

A GIS manager is establishing data quality control procedures for a new parcel dataset. To ensure data integrity, they want to prevent any two parcels from overlapping and ensure there are no empty spaces between adjacent parcels. Which GIS concept directly addresses these requirements?

Accepted Answer

Topological Rules

Answer

Coordinate Transformation

Answer

Raster Resampling

Answer

Attribute Indexing

Question 5

When documenting a newly acquired geospatial dataset, a GIS professional needs to create metadata. They are working for a US federal agency that has recently updated its standards to align with international practices. Which metadata standard are they most likely required to use?

Accepted Answer

ISO 19115: Geographic Information – Metadata

Answer

Dublin Core Metadata Initiative (DCMI)

Answer

Content Standard for Digital Geospatial Metadata (CSDGM)

Answer

Open Geospatial Consortium (OGC) Web Feature Service (WFS) Standard

Question 6

A planning department is analyzing the spatial relationship between proposed development sites (points) and designated historic districts (polygons). They need to ensure that no proposed site falls within the boundaries of a historic district. A spatial query is constructed to select all points that are 'contained by' the historic district polygons. If the query returns a set of points, what does this indicate?

Accepted Answer

The selected points represent sites that are in violation of the regulation.

Answer

All proposed sites are compliant with the regulation.

Answer

The historic district polygons have invalid geometry.

Answer

The point and polygon layers are in different coordinate systems.