Geographic Data and Mapping Flashcards
7 cards from real Tableau practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Geographic Data and Mapping flashcards as text
Which Tableau feature creates a heatmap effect showing concentration of points without individual marks?
Answer: Density mark type
The Density mark type renders a heatmap showing where points cluster most densely.
To overlay symbol marks on top of a filled map in Tableau, which technique is commonly used?
Answer: A dual-axis map using two Latitude/Longitude pairs
Adding a second generated Latitude to the Rows shelf and choosing Dual Axis layers two map layers.
Which background map provider/styles are available natively in Tableau's Map menu?
Answer: Normal, Light, Dark, Streets, Outdoors, and Satellite styles
Tableau offers several built-in background map styles including Light, Dark, Streets, Outdoors, and Satellite.
What is required to display custom polygons (e.g., custom sales territories) on a Tableau map?
Answer: Polygon data with point order (Path) and a Polygon mark type, or a spatial file
Custom shapes need polygon vertices ordered by a Path field with the Polygon mark type, or a spatial file like a shapefile.
Which spatial file formats can Tableau connect to directly?
Answer: Shapefiles, KML, GeoJSON, MapInfo, and TopoJSON
Tableau can connect directly to common spatial formats including Shapefile, KML, GeoJSON, MapInfo, and TopoJSON.
What does the MAKEPOINT() spatial function do in Tableau?
Answer: Creates a spatial point object from latitude and longitude values
MAKEPOINT() converts latitude and longitude numbers into a spatial point usable in spatial calculations.
Which spatial function measures the distance between two points in Tableau?
Answer: DISTANCE()
DISTANCE() returns the distance between two spatial points in a specified unit such as kilometers or miles.