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tableau/quizzes/tableau-desktop-mapping
intermediate 10 questions

Desktop Mapping

Geographic roles, custom geocoding and map types.

  1. Does Tableau geocode arbitrary addresses for you?

    1. Yes, for any address
    2. No — you must supply latitude and longitude
    3. Only on Server
    4. Only for US data

    Answer: No — you must supply latitude and longitude — Tableau does not geocode; provide coordinates in a CSV for locations it does not already know.

  2. To use a custom set of locations you supply:

    1. A .twbx file
    2. A CSV containing the locations and coordinates
    3. A .tps file
    4. A published data source

    Answer: A CSV containing the locations and coordinates — Import a comma-separated file containing your locations to extend the geocoding.

  3. A map chart requires at least:

    1. Two measures
    2. One geocoded dimension
    3. A date dimension
    4. A parameter

    Answer: One geocoded dimension — You need one dimension with a geographic role assigned, plus one or two measures.

  4. Which are the two main map variants?

    1. Pie map and bar map
    2. Symbol map and filled map
    3. Heat map and tree map
    4. Gantt map and bullet map

    Answer: Symbol map and filled map — Symbol maps overlay marks on the map; filled maps shade the areas themselves.

  5. Custom geocoding lets you:

    1. Only add cities
    2. Extend existing roles and define your own polygons and regions
    3. Change the map provider
    4. Disable the map layer

    Answer: Extend existing roles and define your own polygons and regions — You can add your own states, cities and custom regions defined as polygons.

  6. What does the sequence field in geocoded polygon data control?

    1. Sort order in the legend
    2. How the path is drawn by Tableau
    3. Colour assignment
    4. Filter order

    Answer: How the path is drawn by Tableau — Polygon points plus a sequence tell Tableau the order in which to draw the path.

  7. A risk of highly detailed custom geocoding is:

    1. Wrong colours
    2. It can slow workbooks considerably
    3. Maps stop rendering
    4. It disables filters

    Answer: It can slow workbooks considerably — Balance the detail of geocoded data against workbook performance.

  8. Which field pair does Tableau generate for geographic dimensions?

    1. Rows and Columns
    2. Latitude and Longitude (generated)
    3. Measure Names and Measure Values
    4. Number of Records and Sales

    Answer: Latitude and Longitude (generated) — Assigning a geographic role generates Latitude and Longitude fields.

  9. If a city is unrecognised, Tableau shows:

    1. An error dialog
    2. An unknown/ambiguous indicator you can edit locations for
    3. A blank sheet
    4. The nearest match silently

    Answer: An unknown/ambiguous indicator you can edit locations for — The unknown indicator in the corner lets you edit locations and resolve ambiguity.

  10. Filled maps are a poor choice when:

    1. You have many small areas of similar value
    2. You have geographic data
    3. You need colour
    4. You use Desktop

    Answer: You have many small areas of similar value — Area shading is hard to compare across many small similar regions; a symbol map may read better.