What term is used to describe the following picture?
Answer(s): C
When you connect to a data source, Tableau automatically separates date fields into hierarchies so you can easily break down the viz. You can also create your own custom hierarchies. For example, if you have a set of fields named Region, State, and County, you can create a hierarchy from these fields so that you can quickly drill down between levels in the viz.
https://help.tableau.com/current/pro/desktop/en-us/qs_hierarchies.htm
True or False: A LEFT JOIN or INNER JOIN creates a row each time the join criteria is satisfied, which can result in duplicate rows. One way to avoid this is to use data blending instead.
Answer(s): A
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 joinLeft JoinBlends, 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.
https://help.tableau.com/current/pro/desktop/en-us/multiple_connections.htm
__________ is a technique in Tableau which will identify marks with similar characteristics
Cluster analysis partitions marks in the view into clusters, where the marks within each cluster are more similar to one another than they are to marks in other clusters.
https://help.tableau.com/current/pro/desktop/en-us/clustering.htm
Which of the following is the correct way to calculate Profit Ratio in Tableau?
THIS IS A VERY IMPORTANT QUESTIONAggregation is an important concept to consider when creating calculated fields. A calculated field for SUM([Profit]) / SUM([Sales]) will give you a very different answer than [Profit] / [Sales], even though both formulas are valid.If you do not provide the aggregation within the calculated field, Tableau will calculate the equation for every record ( row ) in your analysis, then aggregate the answers for all of the rows together when the calculated field is added to the view.In simple terms, if specify the aggregation such as SUM, what Tableau will do is that it will first calculate the sum of the Profit column ( say x ), then calculate the sum of the Sales column ( say y ), and then simply apply x/y ---> This is what we expect! Perfect!BUT, if you don't specify the aggregation, it will go to every single ROW, perform Profit / Sales, and then aggregate the answers calculated for each row. This is simply NOT what we wan't!An example:
https://www.linkedin.com/pulse/tableau-tip-dont-make-error-ratio-calculations-bob- newstadt
Which of the following returns the Absolute Value of a given number?
From the official Tableau website:
https://help.tableau.com/current/pro/desktop/en-us/functions_functions_number.htm
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