Free Tableau TDS-C01 Exam Actual Questions

The questions for TDS-C01 were last updated On Jun 11, 2025

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Question No. 1

Using the CoffeeChain table, create a crosstab showing the Total Expenses per State and add Column Grand Totals to the view. Now group the states of New York, California and Washington. What percent of the total sales does this group contribute?

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Correct Answer: C

We need to use the concept of Groups for this question. Follow along:

1) First, Drag State to the Rows shelf, and Total Expenses to the Text Mark on the Marks Shelf:

2) Now, remove the SUM aggregation from Total Expenses, and add a quick table calculation -> Percent of total:

3) Next, Select the States of New York, California and Washington -> And then click the paperclip icon:

We can see the answer already : 23.386% in the view above (even before grouping!)

4) Finally, we get the following view and our answer:


Question No. 2

What is the default behavior of Tableau when you add a measure to the view?

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Correct Answer: D

The default behavior of Tableau when you add a measure to the view is to automatically apply an aggregation to that measure. The type of aggregation applied can vary depending on the context of the view. For example, if no other measures or dimensions affect the measure, Tableau might default to SUM. However, if there are other dimensions in the view that define the level of detail, the aggregation might be different to reflect the context.


Question No. 3

Which of the following are valid reasons to use a Tableau Data Extract (.tde) over Live Connections?

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Correct Answer: A, B, C

From the official documentation, the following are the major advantages of using Tableau Data Extracts:

From Tableau 2020.2 onwards, .hyper is the recommended way since it is faster than .tde!


Question No. 4

Using the Geo Data Table, create a Map showing Sales made per State. For the State of New York (NY), what was the amount in Sales ($) made for Phone Assortments with White color?

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Correct Answer: A

Phew! Tricky one! You needed to use filters in this one.

Follow along:

2) Next, as the question mentions, we need to focus on the Assortment PHONE, the color WHITE, and the state of NEW YORK. -> so we use filters for this!

i) First dragAssortmentto Filters, and select only Phones :

ii) Next, drag Color to Filters and Choose only White:

iii) Next, dragStateIDto Filters, and choose New York (NY):

And Voila! We have our answer as follows:

iv) Last, drag Sales to Label:


Question No. 5

What are two requirements to combine two tables by using a union? Choose two.

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Correct Answer: A, D

To perform a union in Tableau, the tables must have a related field with matching data types, and they must have the same number of fields. This allows the tables to be appended vertically in the data source. Different names or tables from different connections do not affect the ability to union the tables.