Tableau Exploring and Analyzing Data 2 — Questions and Answers
Question 1: Which Tableau feature allows you to see the underlying data records for a specific mark in a visualization?
- View Data (Correct answer)
- Highlight Action
- Data Source Filter
- Extract Refresh
Correct answer: View Data
View Data lets you inspect the underlying rows that make up a selected mark.
Question 2: What does a reference band in Tableau represent?
- A shaded region between two reference lines used to highlight a value range (Correct answer)
- A highlighted bar in a bar chart
- A calculated field based on a window function
- A filter applied to a single axis
Correct answer: A shaded region between two reference lines used to highlight a value range
A reference band shades the area between two constant, average, or computed boundary values on an axis.
Question 3: When using a dual-axis chart in Tableau, what must you do to align the two axes scales?
- Select 'Synchronize Axis' from the axis context menu (Correct answer)
- Drag both pills to the same shelf
- Apply a table calculation to both measures
- Set both axes to logarithmic scale
Correct answer: Select 'Synchronize Axis' from the axis context menu
Synchronize Axis ensures both axes share the same scale range for accurate visual comparison.
Question 4: Which Tableau analytics feature groups marks into clusters based on statistical similarity?
- Clustering (Correct answer)
- Reference Lines
- Trend Models
- Box Plots
Correct answer: Clustering
The Clustering feature uses k-means to automatically group marks with similar measure values.
Question 5: In Tableau, what is the purpose of a 'Scope' setting in a table calculation?
- It defines which dimension partitions the calculation versus which it computes along (Correct answer)
- It limits the calculation to a specific date range
- It determines how many rows the calculation aggregates
- It sets the level of detail for fixed expressions
Correct answer: It defines which dimension partitions the calculation versus which it computes along
Scope (Partition/Address) controls which fields define independent groups and which the calculation traverses.
Question 6: What does the WINDOW_AVG() function compute in a Tableau table calculation?
- The average of a measure across a defined window of rows or columns (Correct answer)
- The row-level average of multiple measures
- The moving average using an exponential weight
- The average excluding null values within a fixed LOD
Correct answer: The average of a measure across a defined window of rows or columns
WINDOW_AVG() returns the mean of a measure over the partition defined by the table calculation's addressing.
Question 7: Which of the following best describes a 'Mark' in Tableau?
- A single data point or aggregated data element rendered visually in the view (Correct answer)
- A dimension value placed on the Rows shelf
- A filter applied to the data source
- A calculated field used to color encode data
Correct answer: A single data point or aggregated data element rendered visually in the view
A mark is the visual encoding of one or more data values — it could be a bar segment, circle, line node, or other shape.
Tableau Exploring and Analyzing Data 2
Which Tableau feature allows you to see the underlying data records for a specific mark in a visualization?