10 free, exam-style GIS Professional (GISP) practice questions with answers and explanations. No signup required. Work through them below, then take the full free GISP practice test to study every exam domain.
A GIS analyst needs to create a map of a large east-west trending state for a printed atlas at 1:500,000 scale. The map must preserve area for accurate land-use comparisons. Which projected coordinate system is MOST appropriate?
Correct answer: D - Albers Equal-Area Conic
During a quality assessment of a land cover dataset, a GIS technician discovers that several residential parcels have been incorrectly classified as commercial. According to ISO 19157, this error is BEST described as a deficiency in which data quality element?
Correct answer: A - Thematic accuracy
A city GIS department receives two datasets of the same area: a 30 m Landsat image and a 1 m NAIP orthophoto. Both cover the same extent. Which of the following statements BEST explains the key difference between these datasets?
Correct answer: B - The NAIP image has higher spatial resolution, enabling identification of smaller features
A cartographer is preparing a choropleth map showing median household income by census tract. The data is strongly right-skewed, with a small number of very high-income tracts. Which classification method will produce the MOST visually balanced map that highlights natural groupings in the data?
Correct answer: C - Natural Breaks (Jenks)
A survey crew is using a GNSS receiver to collect boundary locations for a property deed survey. The project specification requires horizontal accuracy of 2 centimeters or better. Which GNSS collection method meets this requirement?
Correct answer: B - Real-Time Kinematic (RTK)
A GIS analyst needs to share a multi-layer vector dataset containing road centerlines, parcel boundaries, and zoning polygons with an external agency. The file must support multiple layers in a single file, have no field name length limitations, and comply with OGC standards. Which format is MOST appropriate?
Correct answer: A - GeoPackage (.gpkg)
An environmental scientist has 200 irregularly spaced groundwater monitoring wells with arsenic concentration measurements. She needs to create a continuous prediction surface AND an accompanying map of prediction uncertainty. Which interpolation method is BEST suited for this requirement?
Correct answer: D - Kriging
A database administrator is reviewing a table in which the non-key attribute 'City' determines the non-key attribute 'State'. Both attributes depend on the primary key 'Parcel_ID'. This table violates which normal form?
Correct answer: C - Third Normal Form (3NF)
A county government wants to deploy a GIS that allows staff to access and edit data through a web browser without installing software, while the county IT department manages the servers, databases, and security on-site. Which deployment architecture BEST describes this requirement?
Correct answer: D - On-premise enterprise GIS with web clients
A GISP working for a private engineering firm discovers that their client is using an outdated FEMA floodplain dataset to approve new construction permits in a known high-risk area. The firm's contract does not include updating the flood data. According to the GISCI Code of Ethics, what should the GISP do FIRST?
Correct answer: B - Inform the client of the data limitations and the potential risk to public safety
Practice hundreds more GISP questions with instant scoring, weak-area drills, and full exam simulations.