Tableau Data Connections and Preparation 2

Question 1

When connecting to a PDF file in Tableau Desktop, which of the following is a key limitation?

Accepted Answer

Only text content is extracted; charts and images are ignored

Answer

Tableau cannot connect to PDFs at all

Answer

PDF connections require a Tableau Server license

Answer

PDF files must be under 10 MB

Question 2

Which Tableau feature allows you to combine rows from two data sources that share the same fields and structure?

Accepted Answer

Union

Answer

Join

Answer

Blend

Answer

Relationship

Question 3

In Tableau, what is the purpose of the 'Input' step in Tableau Prep Builder when building a flow?

Accepted Answer

To specify the data source and initial connection settings

Answer

To define calculated fields before cleaning

Answer

To output cleaned data to a published extract

Answer

To merge multiple data sources via blending

Question 4

What happens to NULL values when you create a wildcard union in Tableau?

Accepted Answer

Columns that don't exist in a particular sheet are filled with NULL

Answer

NULLs are automatically filled with zero

Answer

Wildcard unions reject sheets that contain NULL values

Answer

NULLs are converted to empty strings automatically

Question 5

Which connection type should you choose if you want Tableau to store a copy of the data locally for faster performance?

Accepted Answer

Extract connection

Answer

Live connection

Answer

Published data source

Answer

Web data connector

Question 6

When editing a relationship between two tables in Tableau's data model, what is the default join type used behind the scenes?

Accepted Answer

Left outer join

Answer

Inner join

Answer

Full outer join

Answer

Cross join

Question 7

A user wants to connect to a Google Sheets file in Tableau Desktop. Which authentication method is required?

Accepted Answer

Google account OAuth sign-in

Answer

Username and password only

Answer

API key stored in the workbook

Answer

Tableau Server credential pass-through