Tableau Desktop Certified Associate Interview Questions

The Tableau Desktop Certified Associate exam was retired on September 30, 2021.

The Tableau Desktop Certified Associate examination is specifically designed for candidates who have a thorough knowledge of Tableau Desktop functionality and at least five months of applying this learning to the product. It improves the candidate’s ability to work with data and visualize data. Therefore, to help you prepare for the Tableau Desktop Certified Associate interview we have curated expert-level questions and answers!

1. Define Tableau.

• Tableau is a business intelligence application.
• It enables anyone to connect to the relevant data.
• Creates interactive, shareable dashboards by visualising and creating interactive, shareable dashboards.

2. Explain tableau desktop.

Anyone can use it for self-service business analytics and data visualization. It converts data images into optimized queries. You can use tableau desktop to connect directly to data from your data warehouse for real-time data analysis. You can also run queries without having to write a single line of code. Import all of your data from multiple sources into Tableau’s data engine and integrate it all together by combining multiple views in an interactive dashboard.

3. What do you understand by Measures?

• Measures are numeric metrics or quantifiable quantities of data that can be analyze using a dimension table. Measures are store in a table with foreign keys that uniquely refer to the associated dimension tables. The table supports data storage at the atomic level, allowing for a greater number of records to be insert at once. A Sales table, for example, could have a product key, a customer key, a promotion key, items sold, and a reference to a specific event.

4. Define Dimensions.

Dimensions are the descriptive attribute values for each attribute’s multiple dimensions, defining multiple characteristics. A dimension table, with a reference to a product key from the table, can include product name, product type, size, color, description, and so on.

5. What is the distinction between the.twb and.twbx file extensions?

A.twb file is an XML document that contains all of your Tableau workbook’s selections and layout. It contains no information.
A.twbx file is a ‘zipped’ archive that contains an a.twb file as well as any external files such as extracts and background images.

6. What kinds of connections can you make with your dataset?

We can either connect to our data set in real-time or extract data into Tableau.

• Connecting to a data set in real time allows you to take advantage of its computational processing and storage. New queries are sent to the database as new or updated within the data.
• Tableau’s data engine will use an extract to create a static snapshot of the data. The data snapshot can be refresh on a recurring basis as a whole or incrementally appended data. The Tableau server is one method for configuring these schedules.

7. Define shelves in Tableau Desktop Certified Associate.

They are labeled areas on the left and right sides of the screen. Views are created by arranging fields on shelves. Some shelves are only accessible if you select specific mark types.

8. What do you understand by sets?

Sets in Tableau Desktop Certified Associate are custom fields that define a subset of data based on certain criteria. A set can be based on a computed condition, such as customers with sales above a certain threshold. As your data changes, computed sets are updated. A set can also be based on a specific data point in your view.

9. Explain groups in Tableau Desktop Certified Associate.

A group in Tableau Desktop Certified Associateis a collection of dimension members that together form higher-level categories. For instance, if you’re working with a view that displays average test scores by major, you might want to group certain majors together to create major categories.

10. What exactly is a dual axis?

Dual Axis is an excellent Tableau-supported phenomenon that allows users to view two scales of two measures in the same graph. Many websites, including Indeed.com, use dual axes to compare two measures and their growth rate over a specific time period. Dual axes allow you to compare multiple measures at the same time by stacking two independent axes on top of one another.

11. In Tableau, what is the difference between joining and blending?

• When combining data from the same source, such as a worksheet in an Excel file or tables in an Oracle database, the term “joining” is use.
• While blending necessitates the inclusion of two fully defined data sources in your report.

12. What are Tableau Server Extracts and Schedules?

Data extracts are the first copies or subdivisions of the original data sources. Workbooks that use data extracts rather than live DB connections are faster because the extracted data is imported into Tableau Engine. Following data extraction, users can publish the workbook, which also publishes the extracts in Tableau Server. However, unless users perform a scheduled refresh on the extract, the workbook and extracts will not refresh. Scheduled Refreshes are tasks that are set up for data extract refresh so that they are refreshed automatically when a workbook with data extract is publish. This also eliminates the need to republish the workbook whenever the relevant data is update.

13. What exactly is a hierarchical field?

In the tableau, a hierarchical field is used to drill down into data. It entails inspecting your data at a finer level.

14. Define Tableau Data Server in Tableau Desktop Certified Associate.

Tableau server acts as a go-between for Tableau users and the data. Tableau Data Server allows you to upload and share data extracts, as well as save and reuse calculations and field metadata. This means that any changes you make to the data-set, calculated fields, parameters, aliases, or definitions can be saved and shared with others, resulting in a secure, centralized, and standardized dataset. Furthermore, you can use your server’s resources to run queries on extracts without first transferring them to your local machine.

15. What are the components of a dashboard called?

• Horizontal layout containers enable the designer to group worksheets and dashboard components from left to right across your page and change the height of all elements at once.
• Vertical containers allow you to group worksheets and dashboard components from top to bottom on your page and change the width of all elements at once.
• Text – Any and all textual fields.
• A Tableau workbook is in XML format, so you can extract images from it. Tableau uses some codes to extract images that can be save in XML format.

16. How do I get rid of the ‘All’ option in a Tableau auto-filter?

By simply clicking the down arrow in the auto-filter heading, you can remove ‘All’ options from the auto-filter. You can uncheck the ‘Show “All” Value’ attribute by scrolling down to ‘Customize’ in the dropdown. It can be activated again by checking the field.

17. How Do I Add a Custom Color to Tableau?

A power tool in Tableau is referred to as Adding a Custom Color. After saving the.tps file, restart your Tableau desktop. Drag the one you want to color from the Measures pane to Color. Select Edit Colors from the color legend menu arrow. When a dialogue box appears, choose the palette drop-down list and customize it as needed.

18. How can reports be automated?

You must publish the report to the tableau server. During the publishing process, you will see an option to schedule reports. All you have to do is specify when you want the data to be refreshed.

19. What is the meaning of Assume referential integrity?

You can improve query performance in some cases by selecting Assume Referential Integrity from the Data menu. When you select this option, Tableau will only include the joined table in the query if it is explicitly referenced by fields in the view.

20. How do you perform performance testing in Tableau?

Once again, performance testing is a critical component of tableau implementation. This can be accomplish by loading Testing Tableau Server with TabJolt, a “Point and Run” load generator designed for QA. While TabJolt is not directly supported by Tableau, it can be installed using other open-source products.

21. What do you mean by “blended axis”?

Measures in Tableau can share a single axis, allowing all marks to be displayed in a single pane. When you blend measures, instead of adding rows and columns to the view, there is a single row or column and all of the values for each measure are shown along a single continuous axis. By dragging one measure or axis and dropping it onto an existing axis, we can blend multiple measures.

22. In Tableau, when would you use Joins vs. Blending?

When dealing with data from a single source, it is always preferable to use Joins. When your data is not in a single location, blending is the most practical way to create a left join, such as the link between your primary and secondary data sources.

23. What exactly is the default Data Blending Join?

Data blending refers to the ability to combine data from multiple sources into a single Tableau view without the use of any special coding. A default blend corresponds to a left outer join. However, by changing the primary data source or by filtering nulls, it is possible to simulate left, right, and inner joins.

24. What exactly is storey in Tableau?

A storey is a sheet with a series of worksheets or dashboards that work together to convey information. You can use stories to demonstrate how facts are related, provide context, show how decisions relate to outcomes, or simply make a compelling case. A storey point is a name given to each individual sheet in a storey.

25. In Tableau, what is the distinction between discrete and continuous data?

Tableau has two types of data roles: discrete dimension and continuous dimension.

• Discrete data roles are values that can only take individual values within a range and are counted as distinct and separate. Examples include the number of threads in a sheet, the customer’s name, row ID, and state. Discrete values are represented on the shelves by blue pills and in the data window by blue icons.
• Continuous data roles are use to quantify continuous data and can have any value within a finite or infinite interval. Unit price, time and profit, and order quantity are some examples. Continuous variables behave similarly to discrete variables in that they can take on any value. Continuous values are as green pills.

26. What is the Methodology of the DRIVE Program?

Tableau Drive is a self-service analytics scaling methodology. Drive is founded on best practices derived from successful enterprise deployments. The methodology is based on iterative, agile methods that are more efficient and effective than traditional long-cycle deployment. A new model of collaboration between business and IT is a cornerstone of this approach.

27. How can I use a group in a calculated field?

By adding the same calculation to the SQL query’s ‘Group By’ clause, or by creating a Calculated Field in the Data Window and using that field whenever you want to group the fields. A calculation that makes use of groups. Ad hoc groups cannot be referenced in a calculation. Data should using groups made in the secondary data source: Only calculated groups that were in the secondary data source can be use in data blending. In another workbook, use a group. By copying and pasting a calculation, you can easily replicate a group in another workbook.

28. If my licence expires today, will users be able to view dashboards or workbooks that I previously published on the server?

If your server license expires today, your username on the server will be as ‘unlicensed,’ which means you will be unable to access it, but others will be able to. The site administrator can transfer ownership to another person to ensure that the extracts do not fail.

29. Is Tableau software suitable for strategic acquisition?

Yes! Without a doubt. It provides data insight in ways that other tools cannot. Furthermore, it assists you in planning, identifying anomalies, and improving your process for the benefit of your company.

30. What is the maximum number of rows that Tableau can use at one time?

Tableau is not limited by the number of rows in a table. Tableau is use by customers to access petabytes of data because it only retrieves the rows and columns required to answer their questions.