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Tableau TDS-C01 Exam
Tableau Desktop Specialist (Page 5 )

Updated On: 30-Jan-2026
Page 5 of 65
PDF with 317 Questions

True or False: Physical tables remain distinct (normalized), not merged in the data source whereas logical tables are merged into a single, flat table.

  1. True
  2. False

Answer(s): B

Explanation:

In fact, the opposite of this is true.

Trick : Whenever you think of joins -> Think that after the join is created, we get 1 single flat combined (joined) table. This flat combined table is created prior to us creating our visualizations.

This happens at the physical layer.
If you ever think about relationships, know that all tables will remain distinct and separate, and relationships sit at the logical layer. At run time, when you bring in the dimensions and measures to create your viz, Tableau very smartly creates the necessary joins, relates the tables and sends queries to these tables to get the resultant data back in the most meaningful way possible. This allows you to focus on using your data and revealing insights from it and focus less on the data preparation aspect!

Refer to logical layer vs physical layer from the official documentation: https://help.tableau.com/current/server/en-us/datasource_datamodel.htm



Given a map, which of the following fields can be placed on Size,Shape,Detail,Color

  1. Region, Country, Profit, State
  2. Sales, State, Country, Profit
  3. Profit, State, Number of Records, Sales
  4. Longitude, Country, State, Sales

Answer(s): B

Explanation:

Since Sales is a measure, it can easily be depicted via size. To drill down and change the level of detail, Country is the correct choice since it will contain STATE. We can then depict the various states by different shapes such as circle, square etc. Finally, the Profit can be depicted via a color! Eg - Red for poor and green for excellent profits!


Reference:

https://www.tableau.com/learn/tutorials/on-demand/aggregation-granularity-and-ratio- calculations



True or False: When you drag additional tables to the logical layer canvas, Tableau automatically attempts to create the relationship based on existing key constraints and matching fields to define the relationship. If it can't determine the matching fields, then relating these tables is not possible.

  1. True
  2. False

Answer(s): B

Explanation:



Tables that you drag to the logical layer of the Data Source page canvas must be related to each other.
When you drag additional tables to the logical layer canvas, Tableau automatically attempts to create the relationship based on existing key constraints and matching fields to define the relationship. If it can't determine the matching fields, you will need to select them. If no constraints are detected, a Many-to-many relationship is created and referential integrity is set to Some records match. These default settings are a safe choice and provide the most a lot of flexibility for your data source.


Reference:

https://help.tableau.com/current/server/en-us/datasource_datamodel.htm



Which of the following 2 fields CANNOT be deleted in Tableau?

  1. Number of Records
  2. Measure Names
  3. Measure Values
  4. Calculated Fields

Answer(s): B,C

Explanation:

Measure names and values CANNOT be deleted in Tableau like other columns can. These are auto- generated.
Calculated Fields, and Number of records can both be deleted.



Which of the following are required to create a trend line?

  1. 2 measures on opposing axes, or a date and a measure on opposing axes.
  2. 1 measure, or a date and a dimension on opposing axes.
  3. 1 measure only
  4. 2 dimensions, or a date and a dimension on opposing axes.

Answer(s): A

Explanation:

To create a trend line, we need:


Reference:

https://help.tableau.com/current/pro/desktop/en-us/trendlines_add.htm



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