Tableau TDS-C01 Practice Test - Questions Answers, Page 22

The Tableau workspace consists of menus, a toolbar, the Data pane, cards and shelves, and one or more sheets. Sheets can be worksheets, dashboards, or stories. For details on dashboard or story workspaces, seeCreate a DashboardorThe Story Workspace.

The main thing you do in the workspace is to create visualisations to analyze your data.

Renaming data fields, cleaning the data, previewing the data can all be done in the Data source window.

A URL action is ahyperlinkthat points to a web page, file, or other web-based resource outside of Tableau. You can use URL actions to create an email or link to additional information about your data. To customize links based on your data, you can automatically enter field values as parameters in URLs.

Tricky options! Go to hyperlink and Go to Web page are not valid Actions in Tableau.

A URL actionis a hyperlink that points to a web page, file, or other web-based resource outside of Tableau. You can use URL actions to create an email or link to additional information about your data. To customize links based on your data, you can automatically enter field values as parameters in URLs.

Important question! Youcannotuse a context filter to replace a data source filter since each filter type has its own use case. Also, a content filter is anIndependentfilter and all other filters are called dependent since they only process the data that passes through a context filter.

According to the official documentation :

Remember that joins are defined in the physical layer and relationships in the logical layer.

You can still specify joins between tables in the physical layer of a data source. Double-click a logical table to go to the Join/Union canvas in the physical layer and add joins or unions.

Every top-level, logical table contains at least one physical table. Open a logical table to view, edit, or create joins between its physical tables. Right-click a logical table, and then clickOpen. Or, just double-click the table to open it.

When you create a data source, it has two layers. The top-level layer is the logical layer of the data source. You combine data between tables in the logical layer using relationships.

The next layer is the physical layer of the data source. You combine data between tables at the physical layer using joins. For more information, seeLogical and physical tables in the data model

At any time, you can see the definitions of your filter under Summary on the General tab.

Note:If you have a large data source, filtering measures can lead to a significant degradation in performance. It is sometimes much more efficient to filter by creating a set containing the measure and then apply a filter to the set. For more information about creating sets, seeCreate Sets

According to the official Tableau documentation:

An example of an area chart is shown below:

From the official Tableau documentation:

You can union your data to combine two or more tables byappending values (ROWS)from one table to another. To union your data in Tableau data source, the tables must come from thesameconnection.

Data fields are made from the columns in your data source. Each field is automatically assigned a data type (such as integer, string, date), and a role: Discrete Dimension or Continuous Measure (more common), or Continuous Dimension or Discrete Measure (less common).

Dimensionscontain qualitative values (such as names, dates, or geographical data). You can use dimensions to categorize, segment, and reveal the details in your data. Dimensions affect the level of detail in the view.

Measurescontain numeric, quantitative valuesthat you can measure. Measures can be aggregated. When you drag a measure into the view, Tableau applies an aggregation to that measure (by default).