Tableau Core Tableau Concepts 3 — Questions and Answers
Question 1: What is the difference between a Tableau extract and a live connection?
- An extract is a saved snapshot of data, while a live connection queries the source in real time (Correct answer)
- An extract is always slower than live
- A live connection cannot be published
- An extract requires Tableau Prep
Correct answer: An extract is a saved snapshot of data, while a live connection queries the source in real time
Extracts store a compressed snapshot locally, whereas live connections query the source directly.
Question 2: Which Tableau file type packages a workbook together with its data extract and resources?
- .twbx (Correct answer)
- .twb
- .tde
- .hyper
Correct answer: .twbx
A .twbx (packaged workbook) bundles the workbook with data and supporting files.
Question 3: What does a 'context filter' do in Tableau?
- Creates a temporary subset of data that other filters then operate on (Correct answer)
- Hides all marks
- Sorts the axis
- Publishes the view
Correct answer: Creates a temporary subset of data that other filters then operate on
A context filter first reduces the dataset, and remaining filters apply to that subset.
Question 4: In Tableau, what is a parameter?
- A dynamic value users can input to control calculations or filters (Correct answer)
- A fixed dimension
- A type of join
- A dashboard action
Correct answer: A dynamic value users can input to control calculations or filters
Parameters are user-controllable values that can feed calculations, filters, or reference lines.
Question 5: Which aggregation does Tableau apply to a measure by default when you drag it to a view?
- SUM (Correct answer)
- MEDIAN
- STDEV
- VARIANCE
Correct answer: SUM
Tableau aggregates numeric measures using SUM by default.
Question 6: What is the purpose of a Tableau 'Story'?
- Present a sequence of visualizations to convey a narrative (Correct answer)
- Store credentials
- Schedule extract refreshes
- Define data roles
Correct answer: Present a sequence of visualizations to convey a narrative
A Story is a sequence of sheets or dashboards arranged to communicate insights.
Question 7: When you double-click a measure in an empty worksheet, what does Tableau most commonly create?
- A single aggregated mark or basic chart (Correct answer)
- A published data source
- A new parameter
- A join
Correct answer: A single aggregated mark or basic chart
Double-clicking a field adds it to the view, producing an initial aggregated visualization.
Tableau Core Tableau Concepts 3
What is the difference between a Tableau extract and a live connection?