Free Tableau TDA-C01 Exam Actual Questions

The questions for TDA-C01 were last updated On Dec 16, 2024

Question No. 1

You have the following: Overall Rank and Rank are calculated fields that use the RANK function.

You filter out the sub-category where [Ovorall Rank] - 1.

For which three the sub-categories will the value of Rank change? Choose three.

Show Answer Hide Answer
Correct Answer: B, D, F

In Tableau, the RANK function assigns a rank to each row within a partition of the data, based on the value of the field being ranked. It is important to understand that the rank is recalculated whenever the underlying data or the partitioning changes.

In the given scenario, the Overall Rank is based on the Sales figures, while the Rank (presumably) is based on the Sales within the Category. When filtering on the condition where [Overall Rank] - 1, it means we are excluding the sub-category that has an Overall Rank of 2.

Looking at the data:

Furnishings has an Overall Rank of 8, which does not meet the filter condition ([Overall Rank] - 1). Therefore, its rank remains the same.

Tables have an Overall Rank of 3. When the sub-category with an Overall Rank of 2 is removed (Chairs in this case), Tables move up in the overall ranking. However, since Tables are the top-ranked within the Furniture category, their Rank within the category would remain unchanged at 1.

Chairs have an Overall Rank of 2, which meets the filter condition and thus will be removed from the view. We cannot determine the change in Rank for Chairs because they are filtered out.

Accessories have an Overall Rank of 5. If any sub-category with a higher Overall Rank (1 to 4) is removed, the rank of Accessories within the Technology category could change because it is currently ranked 3 in its category. With the removal of Phones (Overall Rank 1), the Rank of Accessories could potentially increase.

Copiers have an Overall Rank of 6, which does not meet the filter condition. Therefore, its rank remains the same.

Machines have an Overall Rank of 4. If we remove Phones (Overall Rank 1), Machines will move up in the overall ranking and potentially within the Technology category as well, changing its Rank from 2 to 1.

Phones have an Overall Rank of 1, which does not meet the filter condition of being Overall Rank 2. Therefore, its rank remains the same.

Bookcases have an Overall Rank of 7, which does not meet the filter condition. Therefore, its rank remains the same.

Based on this analysis, when the sub-category with an Overall Rank of 2 (Chairs) is removed, the Rank value will change for Tables, Accessories, and Machines, as they will move up in the overall ranking within their respective categories. However, it's important to note that while Tables will move up in the overall ranking, their rank within the Furniture category would not change as they are already at the top. The rank changes for Accessories and Machines are due to the removal of Phones, which is ranked higher overall and within the Technology category.


Question No. 2

Open the link to Book1 found on the desktop. Open the Line worksheet.

Modify the chart to show only main and max values of both measures in each region.

Show Answer Hide Answer
Correct Answer: A

To modify the chart to show only min and max values of both measures in each region, you need to do the following steps:

Open the link to Book1 found on the desktop. This will open the Tableau workbook that contains the Line worksheet.

Click on the Line tab at the bottom of the workbook to open the worksheet. You will see a line chart that shows the sales and profit for each month by region.

Drag Month from the Columns shelf to Filters shelf. This will open a dialog box that allows you to filter by different criteria.

Select Range of Dates from the dialog box. This will show you options to filter by a range of dates or values.

Select Minimum and Maximum from the drop-down list next to Month. This will filter by the minimum and maximum values of Month for each region. You can also enter specific values or use the sliders to adjust the range.

Click OK to apply the filter. You will see that the line chart now shows only min and max values of both measures in each region.


Topic 3, Section 3

Question No. 4

You have the following visualization.

You Create a table calculation named Rank_Score that has a formula of RANK(AVG([Score]), and you drag Rank_Score to Text on the Marks cards.

What is the Rank Score value for Student ID 4220?

Show Answer Hide Answer
Correct Answer: D

the rank function returns the rank of each row within the partition of a result set. The rank of a row is one plus the number of ranks that come before the row in question.

To answer your question, we need to apply the rank function to the Avg Score column and sort it in descending order. Then we can find the rank score value for Student ID 4220 by looking at the corresponding row.

Here is how the table would look like after applying the rank function and sorting:

As you can see, the rank score value for Student ID 4220 is1.


Question No. 5

You have the following dataset:

Which grouping option should you use in Tableau Prep to group all five names automatically?

Show Answer Hide Answer
Correct Answer: D

Common Characters: Find and group values that have letters or numbers in common. This option uses the ngram fingerprint algorithm that indexes words by their unique characters after removing punctuation, duplicates, and whitespace. This algorithm works for any supported language. This option isn't available for data roles. For example, this algorithm would match names that are represented as 'John Smith' and 'Smith, John' because they both generate the key 'hijmnost'. Since this algorithm doesn't consider pronunciation, the value 'Tom Jhinois' would have the same key 'hijmnost' and would also be included in the group.