A bullet graph is a variation of a bar graph developed to replace dashboard gauges and meters. A bullet graph is useful for comparing the performance of a primary measure to one or more other measures. Below is a single bullet graph showing how actual sales compared to estimated sales.

We can create a Bullet graph with  just 2 measures!  This method requires the  LEAST  number of fields possible to create this type of chart.

The  best way  to tackle such questions in the exam is to click the  " SHOW ME "  button on top right, and hover over the chart we want to create.

In our case, it is a Bullet graph.

Therefore, we need 2 measures at least to create this chart, and 0 or more dimensions.

Explanation

Joins combine tables by adding more columns of data across similar row structures. This can cause data loss or duplication if tables are at different levels of detail, and joined data sources must be fixed before analysis can begin.

Inner join

Left Join

Blends, unlike relationships or joins, never truly combine the data. Instead, blends query each data source independently, the results are aggregated to the appropriate level, then the results are presented visually together in the view.

In the context of Tableau, " Migrated Data " typically refers to data or workbooks that have been upgraded from a previous version of Tableau Desktop. When you open a workbook in a newer version of Tableau, the data sources within that workbook might be labeled as " Migrated Data, " indicating that they have undergone a conversion process to be compatible with the new version ' s features and architecture.

This is a tricky question often asked in the exam.

If we drag a new measure to the row shelf, the following happens:

We now have 2 rows, and the same 7 columns for both these rows.  Therefore, 2x7 = 14 marks!

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But if we drag the same measure to the column shelf, we have just 1 row and a chart created for each of the columns.  So (1x7) = 7 marks!

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Reference and notes:   https://medium.com/@justindixon91/tableau-specialist-exam-notes-part-4-understanding-tableau-concepts-f78de83fdd35

Hierarchies in Tableau are used to define a drill-down path through your data. By creating a hierarchy, you can organize related fields together, which makes it easier to navigate complex data models. This also allows users to explore data at different levels of detail, from the highest level of the hierarchy to the most granular details, simply by clicking to expand and collapse levels of the hierarchy in the view.

It contains all the measures in your data, collected into a single field with continuous values -  This is the definition for ' Measure Values ' .

All others are True w.r.t. Measure Names!

The  Measure Names  field contains the names of all measures in your data, collected into a single field with discrete values.

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

Explanation

You can create aliases (alternate names) for members in a dimension so that their labels appear differently in the view.

Aliases can be created for the members of discrete dimensions only. They cannot be created for continuous dimensions, dates, or measures.

To create an alias:

1) In the Data pane, right-click a dimension and select Aliases.

2) In the Edit Aliases dialog box, under Value (Alias), select a member and enter a new name.

To submit your changes: In Tableau Desktop, click OK.

On Tableau Server or Tableau Online, click the X icon in the top-right corner of the dialog box.

When you add the field to the view, the alias names appear as labels in the view. For example:

Explanation

As the question mentions, we need to create a SET with the following conditions - > Choose only those customers whose Sales > 30,000

1) Right click on customer name -- > Create -- > Set

2) Let ' s Name the Set - Customer > 30k ( you can name it anything you want :) )

Select USE ALL, and then move to the CONDITION TAB:

3) In the Condition Tab, Choose BY FIELD - > Select Sales - > Sum - > Greater than 30000 , and click OK

4) You should now have a new Set in the Data Pane as follows:

5) Drag this set to the rows shelf, and click on SHOW MEMBERS IN SET. Now drag Sales to the Column Shelf.

6) Click on the Show Mark Labels, and Sort ascending icons as shown:

7) Voila! We have our answer:

c

Explanation

Yes, it is possible to disable highlighting for the entire workbook.

For more information :  https://help.tableau.com/current/pro/desktop/en-gb/actions_highlight.htm

By default, both field names are present in the Union, but contain several null values!

When field names in the union do not match, fields in the union contain null values.  You can merge the non-matching fields into a single field using the merge option to remove the null values.  When you use the merge option, the original fields are replaced by a new field that displays the  first  non-null value for each row in the non-matching fields.

You can also create your own calculation or, if possible, modify the underlying data to combine the non-matching fields.

For example, suppose you have the following customer purchase information stored in three tables, separated by month. The table names are " May2016, " " June2016, " and " July2016. "

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A union of these tables creates the following single table that contains all rows from all tables.

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Now suppose a fourth table, " August2016 " , is added to the underlying data. Instead of the standard " Customer " field name, it contains an abbreviated version called " Cust. "

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