Mapping Geographic Data Flashcards

How do you correct an unknown location flagged in the lower-right corner of a Tableau map?

Answer: Click it and choose Edit Locations to map values

Edit Locations lets you match ambiguous or unknown values to the correct geographic entries.

Why might you set the geographic role for a City field to include State context?

Answer: Many cities share names across states, causing ambiguity

Adding State/Country context disambiguates duplicate city names like Springfield.

Which option lets you import your own latitude/longitude to override Tableau's built-in geocoding?

Answer: Use Latitude and Longitude fields from your data

You can place your own Lat/Long measures on Rows/Columns instead of generated coordinates.

To zoom a published map to a fixed area regardless of filters, which feature helps?

Answer: Lock the map view via Map Options pan/zoom settings

Map Options let you fix the view and disable pan/zoom so the extent stays constant.

Which action filter behavior is common when clicking a region on a map dashboard?

Answer: It filters other sheets to the selected region

A filter action lets a map selection drive filtering across linked dashboard sheets.

What is the effect of placing a dimension on Detail of a map's Marks card?

Answer: It disaggregates marks to a finer geographic level

Adding a dimension to Detail breaks the map into more granular location marks.

Which setting controls whether US data uses Tableau's offline geocoding or an online basemap?

Answer: Map > Background Maps source selection

Map > Background Maps lets you choose Tableau, offline, or a WMS/Mapbox basemap source.