20 mejores Interview Questions and Answers (2024)

Pregunta 1

Explain the difference between a Live connection and an Extract in Tableau.

A Live connection directly queries the data source in real-time, while an Extract creates a snapshot of the data that is stored in Tableau's proprietary format (.hyper) for faster performance.

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Pregunta 2

How can you filter data in Tableau?

Data can be filtered in Tableau using various techniques such as Quick Filters, Context Filters, and Top N filters. Users can also create calculated fields for more advanced filtering.

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Pregunta 3

What is the purpose of Tableau Prep?

Tableau Prep is a data preparation tool that allows users to clean, shape, and combine data for analysis in Tableau. It helps in preparing data by handling tasks like cleaning, splitting, and aggregating data.

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Pregunta 4

How can you create a dual-axis chart in Tableau?

To create a dual-axis chart, drag a second measure to the right of the existing axis. Then, right-click on the second axis and select 'Dual Axis.' This allows for the comparison of two measures with different scales on the same chart.

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Pregunta 5

How can you create a map in Tableau?

To create a map in Tableau, drag a geographical dimension (like Country or State) to the Rows or Columns shelf. Tableau will automatically recognize the geographical data and generate the map. You can then drag measures to the color or size shelf for further customization.

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Pregunta 6

Explain the concept of blending in Tableau.

Data blending in Tableau is the process of combining data from multiple data sources in a single view. It is often used when the data required for analysis comes from different sources, and a relationship between the sources needs to be established.

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Pregunta 7

How can you create a calculated table in Tableau?

To create a calculated table, you can use the Data pane. Right-click on a blank space in the Data pane, select 'Create Calculated Table,' and define the calculations and columns you need. This feature allows you to create tables based on calculated expressions.

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Pregunta 8

What is the purpose of Tableau Server?

Tableau Server is a platform that allows organizations to publish, share, and collaborate on Tableau content. It provides a centralized location for storing and managing Tableau workbooks and dashboards, making it easier for users to access and interact with the data.

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Pregunta 9

How can you schedule data refresh in Tableau Server?

Data refresh in Tableau Server can be scheduled using the 'Refresh Schedules' option. Admins can set up schedules to refresh extracts at specified intervals, ensuring that the data remains up-to-date for users accessing Tableau Server.

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Pregunta 10

What is the use of the Pages shelf in Tableau?

The Pages shelf in Tableau is used for creating animated visualizations over time. It allows users to analyze how data changes over a specified dimension (e.g., time) by creating a series of static visualizations that can be viewed sequentially.

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Preguntas y respuestas para nivel intermedio / de 1 a 5 anos de experiencia

Explain the difference between a Live connection and an Extract in Tableau.

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How can you filter data in Tableau?

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What is the purpose of Tableau Prep?

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How can you create a dual-axis chart in Tableau?

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How can you create a map in Tableau?

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Explain the concept of blending in Tableau.

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How can you create a calculated table in Tableau?

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What is the purpose of Tableau Server?

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How can you schedule data refresh in Tableau Server?

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What is the use of the Pages shelf in Tableau?

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