Tableau Quiz 3

1- How do you change the visual summary type to a pie chart type?
   a- Data Menu> Type > Select pie chart
   b- Toolbar> ShowMe button > select pie chart
   c- worksheet menu > type > select pie chart
   d- right-click the visual summary > select pie chart
Ans- b

2- Which of the following data sources does Tableau allow you to connect to?
   a- Excel
   b- Text Files
   c- Open data server
   d- All of these
Ans- d

3- How do you view the data that underlies the visualization you've created in Tableau?
    a- Data menu > Data Source name > View Data
    b- File menu >  Data Source name > View Data
    c- Data menu > Data Source name > Extract Data
    d- Data menu > Data Source name > Edit Data Source
Ans-a

4- Which of the following built-in functions will round a number up to the next integer?
   a- CEILING
   b- ABS
   c- ROUND
   d- FLOOR
ANS-A

5- How do you create a set within your visualization sheet?
   a- select the data in multiple rows > right-click one of them > choose Format
   b- select the data in multiple rows > right-click one of them > choose Create Set
   c- select the data in multiple rows > right-click one of them > choose Group
   d- select the data in multiple rows > Data menu > choose Create Set
Ans- b

6-if you want to add colors to each of the vertical bars in a visualization, you need to drag the field that will be used as the base for those colors to the Marks card and, specifically, onto the Color box.
  a- True
  b- False
Ans- True

7-  A limitation of the Tableau is that if it does not recognize a location in a visualization it won't be able to map it, so you need to make sure that your data can be mapped.
   a- True
   b- False
Ans- True

8- Calculations Rank() is used for?
   a.  Ranking of views
   b. Ranking for each value in a partition
   c. Both
   d. None

Tableau Quiz2

1- ZN(expression) is

   a.  Return (expression) if it is not null, otherwise return zero
   b.  Return (expression) only if zero
   c.  Return (expression) if null
   d.  None

Ans - a

2- Javascript API is used in Tableau
    a.  To integrate tableau visualizations into your web applications
    b.  To schedule the data extract
    c.  To automate the data integration
   d.  None
Ans- a

3- Single axis show multiple measures and all the marks are shown in a single pane. This concept is known as....  ?
   a.  Dual Axis
   b.  Blended Axis
   c.  Multiple axis
   d.  None
Ans- b

4- Parameters can be used as-
   a.  Filters
   b.  Calculated field
   c.  Actions
   d.  Measure swap
   e.  Auto update
   f.   Dimensions
Ans-  a,b,d,f


5- In tableau sorting can be done via below methods.
   a.  Alphabetic
   b.  Data source order
   c.  Manual
   d.  Field
   e.  Index
Ans- a,d,e

6- URL action is
    a.  A hyperlink that points to another sheet
    b.  A link that points to another dashboard
    c.  A hyperlink that points to a web page, file,  or another web-based resource outside of Tableau.
Ans- c

Tableau Quiz

1-   Tableau allows -
      a. both live connection and data extraction
      b. only live connection
      c. only data extraction
      d. None
Ans- a

2-  Tableau allows direct connection to the database for fetching data
     a. True
     b. False
Ans- a

3-  The data elements of a data source are divided into the following within Tableau Desktop-
     a. Dimensions
     b. Measures
     c. A and B
     d. None
Ans- c

4- Data from excel files can be directly accessed via Tableau?
     a. True
     b. False
Ans- a

5- For a 64 -bit Tableau Server what is required
   a. 2 core, 4GB RAM
   b. 4 core, 8GB RAM
   c. 8 core, 16GB RAM
   d. 16 core, 64GB RAM
Ans- d

6- How many Max tables can we join in tableau?

   a. 256
   b. 64
   c. 32
   d. 16

Ans- c

7- How many types of annotations used in tableau?
   a. 5
   b. 7
   c. 3
   d. 2
Ans- c

8- Multiple values can be selected in filters?
  a. True
  b. False
Ans- True

Tableau Quiz2

Data Blending

Data blending is used when we use data from more than one data source in a single workbook. Data blending is based on the common dimension used to join both databases. Two data sources used in data blending are referred to as a primary data source and secondary data source. A small chain image appears next to the common dimension between both data sources. Data blending is used to combine data from one data source with column data from another data source in a single table.

Why data blending is useful over join-

1- Data is at different granularity.
2- Data is not supported by cross-database join

Tableau Data Extract

Tableau data extract (.dte) Stores tableau data as a filtered and aggregated extract. TDE files are data extracted from external sources such as MS Access or Excel. It is used for external data.  This data can be text,  numerical, or statistical data. 

TDE extracts are Tableau's method of caching data logically to reduce database hits for frequent access reports. TDE extract can be refreshed manually through the Tableau desktop or can be scheduled for periodic refresh through the enterprise edition.

Tableau Packaged Workbook

Tableau packaged workbook contains the Tableau package and extracted local data. The packaged workbook also includes background picture and customized settings in a workbook.
The main purpose of a packaged workbook is to share it with other Tableau Desktop users, who do not have data access. These users can modify the workbook also.
Tableau Reader user can also use packaged workbook but they can't modify it.

The workbook is not connected to original data source and images. It is saved with a .twbx file extension.

Tableau Workbook

Tableau workbook files have the .twb file extension. It is default file type for Tableau users. It does not contain any data in the file.
Tableau Workbook is in XML format. ( it can be edited in a text editor). A workbook contains one or more worksheets. It can also contain dashboards or stories.
It contains information about all formatting, styles, and aggregations applied to any sheet or dashboards in the workbook.
It also contains information about the data source connection and metadata created due to all connections.
Tableau workbook files can be shared with colleagues and clients but they should have access to the data sources.

Type of Tableau Extension File

Tableau uses different file formats which depend on the purpose of their uses. The various formats have unique file types which are identified by their extensions. These Tableau files can be opened in XML format and edited and modified as required.

1. [.TWB]       Tableau Workbook
2. [.TWBX]    Tableau Packaged Workbook
3. [.TDS]        Tableau Data Source
4. [.TDSX]     Tableau Packaged Data Source
5. [.TDE]        Tableau Data Extract
6. [.TDM]       Tableau Bookmark
7. [.TMS]        Tableau Map Source
8. [.TPS]         Tableau Preference