Tableau Interview Question /Answer Part-4
Q1: What are the different ways to use parameters in Tableau?
Ans:
1. Filters
2. calculated fields
3. Actions
4. Measure-swaps
5. changing views
6. auto updates
Q2: Are there any limitations of parameters in Tableau? If yes, give details.
Ans: Tableau dashboard allows the representation of parameters in four ways only. They don’t
allow any multiple values like a filter can do. They only allow a single value.
Q3: Explain when would you use Joins vs. Blending in Tableau?
Ans: If data resides in a single source, it is always desirable to use Joins. When your data is not
in one place blending is the most suitable way to create a left join like the connection
between your primary and secondary data sources.
Q4: What is the benefit of Tableau extract file over the live connection?
Ans: Extract file can be used without any connections and you can build your own visualisation
without connecting to the database.
Q5: If I delete a workbook from tableau public and there are links to other blogs and other
web locations. What happens to them?
Ans: Tableau public is like a repository, if you delete anything in the Tableau public the data
will be lost, even if links are in other locations and blogs. We cannot access those links.
Q6: Mention what is the difference between published data sources and embedded data
sources in Tableau?
Ans: The difference between published data source and embedded data source is:
Published data source: It contains connection information that is independent of any
workbook and can be used by multiple workbooks.
Embedded data source: It contains connection information and is associated with a
workbook.
Q7: Can you create relational joins in Tableau without creating a new table?
Ans: Yes, we can create relational joins in Tableau without creating a new table
Q8: What is the maximum no. of rows Tableau can utilize at one time?
Ans: Tableau is not restricted by the no. of rows in the table. Customers use Tableau to access
petabytes of data because it only retrieves the rows and columns needed to answer your
Questions.
Q9: Can parameters have a drop down list?
Ans: Yes, Parameters have their own drop-down list, which enables the users to view the data
entries which are available in the parameter during the creation.
Q10: Which databases give the best performance when connected live?
Ans: Native Database gives best performance when connected live.
Ans:
1. Filters
2. calculated fields
3. Actions
4. Measure-swaps
5. changing views
6. auto updates
Q2: Are there any limitations of parameters in Tableau? If yes, give details.
Ans: Tableau dashboard allows the representation of parameters in four ways only. They don’t
allow any multiple values like a filter can do. They only allow a single value.
Q3: Explain when would you use Joins vs. Blending in Tableau?
Ans: If data resides in a single source, it is always desirable to use Joins. When your data is not
in one place blending is the most suitable way to create a left join like the connection
between your primary and secondary data sources.
Q4: What is the benefit of Tableau extract file over the live connection?
Ans: Extract file can be used without any connections and you can build your own visualisation
without connecting to the database.
Q5: If I delete a workbook from tableau public and there are links to other blogs and other
web locations. What happens to them?
Ans: Tableau public is like a repository, if you delete anything in the Tableau public the data
will be lost, even if links are in other locations and blogs. We cannot access those links.
Q6: Mention what is the difference between published data sources and embedded data
sources in Tableau?
Ans: The difference between published data source and embedded data source is:
Published data source: It contains connection information that is independent of any
workbook and can be used by multiple workbooks.
Embedded data source: It contains connection information and is associated with a
workbook.
Q7: Can you create relational joins in Tableau without creating a new table?
Ans: Yes, we can create relational joins in Tableau without creating a new table
Q8: What is the maximum no. of rows Tableau can utilize at one time?
Ans: Tableau is not restricted by the no. of rows in the table. Customers use Tableau to access
petabytes of data because it only retrieves the rows and columns needed to answer your
Questions.
Q9: Can parameters have a drop down list?
Ans: Yes, Parameters have their own drop-down list, which enables the users to view the data
entries which are available in the parameter during the creation.
Q10: Which databases give the best performance when connected live?
Ans: Native Database gives best performance when connected live.
Comments
Post a Comment