BigData / Tableau Interview Questions

What is Tableau?

Tableau is a visual analytics platform transforming the way we use data to solve problems-empowering people and organizations to make the most of their data.

Tableau allows users to connect to various data sources, create interactive dashboards, and generate insightful reports. Tableau is the Business Intelligence (BI) industry's most potent and fastest tool for visualizing data. It turns the raw data into a format that is easy to understand. Data visualization or diagrams make it easy for employees at all levels of an organization to understand the information.

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What is a Tableau workbook? What is Tableau? What is data visualization? What is a Tableau worksheet? What is a dashboard in Tableau? What are the different data connection options available in Tableau? What are the different datatypes in Tableau? What is a story in Tableau? What are Measures and Dimensions in Tableau? What are the different Tableau products? Advantages of Tableau. What is Tableau Public? What is Tableau Server? What is a parameter in Tableau? What is Tableau Prep? What are filters in Tableau? What are the different types of filters in Tableau? What is a calculated field in Tableau? What is a Tableau extract? What is the difference between a live connection and an extract? What are the Rows, Columns, and Marks shelves used for? What is the Marks card used for? What is a dual-axis chart, and how do you create one? What is data blending in Tableau? What is the difference between data blending and a join in Tableau? What are the types of joins supported in Tableau? What is a context filter, and why would you use one? What is the order of operations for filters in Tableau? What are Sets in Tableau? What are Groups in Tableau? What is the difference between a Set and a Group in Tableau? What is a hierarchy in Tableau? What are table calculations in Tableau? What is the difference between a calculated field and a table calculation? What is a Level of Detail (LOD) expression? What is the difference between FIXED and INCLUDE LOD expressions? What is a Tableau action? What is the difference between discrete and continuous fields in Tableau? What are the aggregate functions available in Tableau? What is the difference between a.twb and a.twbx file? What is VizQL? How does Tableau handle NULL values? What is a Gantt chart, and when would you use one in Tableau? What is a heat map in Tableau? What is a treemap in Tableau? What is forecasting in Tableau? What are reference lines and reference bands in Tableau? What is a bin in Tableau, and how is it different from a histogram? What is row-level security in Tableau? What is the difference between Tableau Desktop and Tableau Reader? What is a custom SQL connection in Tableau? What is the Tableau Hyper engine?

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