Wednesday, 11 November 2015


This is SET-6, to read from start click here This set contain top 10(out of 80) tableau interview questions answer.
Our last article is about Power BI Interview Questions , powerBI growing very fast these days, So If you are preparing for Tableau then must through PowerBI Interview questions as well, because interviewer can ask some question related to PowerBI.


51). What is a Hierarchy?
Ans: Refers to the systematic organization of data, often in a hierarchical form. Data organization involves fields, records, files and so on.

52). Does their need to be any metadata or semantic layers set-up before a customer can use Tableau?
Ans: No, Tableau Desktop offers very quick and easy direct connectivity to over 40 types of databases (plus tons other through ODBC). Simply point Tableau Desktop directly at a database and a customer can choose what table(s) and view(s) they'd like to connect to and they are on their way. No pre-configuration necessary.

53). What is a Measure?
Ans: Measure is a numeric value stored in a fact table.

54). What is a Dimension? 
Ans: Dimension is a categories for organizing items in a data set.

55). What is shelf?
Ans: The Columns shelf creates the columns of a table, while the Rows shelf creates the rows of a table. You can place any number of fields on these shelves.
When you place a dimension on the Rows or Columns shelves, headers for the members of that dimension are created. When you place a measure on the Rows or Columns shelf, quantitative axes for that measure are created. As you add more fields to the view, additional headers and axes are included in the table and you get an increasingly detailed picture of your data.
For example, the members of the Segment dimension are displayed as column headers, while the Profit measure is displayed as a vertical axis.

56). What is card? 
Ans: Every worksheet contains a variety of different cards that you can show or hide. Cards are containers for shelves, legends, and other controls.
For example, the Marks card is where you control mark properties. It contains the mark type selector along with controls for Color, Size, Label, Detail, Tooltip, Shape, and Angle. The controls that are available depend on the mark type.

57). Whenever a Measure is drag and dropped onto a shelf, it does a SUM. How would a user change it to a Median? *Practice in Bronze Study Workbook 
Ans: Right click on a measure (green) or column shelf and choose 'Measure->Median'

58). How would a user replace a measure or dimension on the rows or columns shelf?
Ans: Drag and drop field over the current field on the shelf. The new field will replace the other field.

59). What is a group in Tableau Desktop? Why is it important? 
Ans: A group is a combination of dimension members that make higher level categories.
In Tableau there isn't any coding or scripting required to group. Other software grouping can require coding or scripting which is difficult and time consuming.

60). What are the benefits of a discrete date vs. a continuous one? 
Ans: Treating dates as a continuous quantity is particularly useful in Gant bars or to see trends using line charts.

61). CLICK HERE FOR SET-7(Q-61 to Q70)



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