TIBCO Introduction To TIBCO Spotfire 4 — Questions and Answers
Question 1: In TIBCO Spotfire, which type of join is used by default when combining two data tables in the Add Rows transformation?
- Inner join that keeps only matching rows
- Union that appends all rows from both tables, matching columns by name (Correct answer)
- Left outer join preserving all rows from the first table
- Cross join producing all row combinations
Correct answer: Union that appends all rows from both tables, matching columns by name
Add Rows performs a union operation, stacking rows from both tables and aligning columns with matching names.
Question 2: What is the function of the Spotfire 'Expression Editor' when building a calculated column?
- A drag-and-drop interface for building chart layouts
- A syntax-aware editor for writing Spotfire expression language formulas with column and function autocomplete (Correct answer)
- A SQL editor for querying connected databases directly
- A dialog for setting column display format (e.g., currency, percentage)
Correct answer: A syntax-aware editor for writing Spotfire expression language formulas with column and function autocomplete
The Expression Editor provides autocomplete, syntax highlighting, and formula validation for writing Spotfire's custom expression language.
Question 3: Which Spotfire chart property controls what value is displayed when a user hovers over a data point?
- Axis scaling
- Tooltip settings (Correct answer)
- Trellis configuration
- Legend placement
Correct answer: Tooltip settings
The Tooltip settings in a visualization's properties determine which columns or expressions are shown when a user hovers over a mark.
Question 4: When a Spotfire analysis uses 'on-demand loading' for a data table, when is data actually retrieved from the source?
- At analysis startup when the DXP file is opened
- Only when the user interacts with a filter or marking that triggers a new query (Correct answer)
- During scheduled nightly refresh jobs
- When the analysis is exported to PDF
Correct answer: Only when the user interacts with a filter or marking that triggers a new query
On-demand loading defers data retrieval until user interactions (filter changes, markings) trigger a query, reducing initial load time for large datasets.
Question 5: In TIBCO Spotfire's Trellis (small multiples) feature, what does the 'Rows and Columns' configuration control?
- The number of data rows and columns loaded into memory
- How the individual panel charts are arranged in a grid by category values (Correct answer)
- The row height and column width of the underlying data table
- The sort order of axes within each panel
Correct answer: How the individual panel charts are arranged in a grid by category values
Trellis Rows and Columns settings split a visualization into a grid of small charts, with each cell representing a subset of data defined by category values.
Question 6: Which TIBCO Spotfire feature allows a visualization author to create a button or link that, when clicked, changes filter values, marks data, or navigates to another page?
- Calculated column
- Action Control (Button, Link, or Input control) (Correct answer)
- Data function
- Web link property
Correct answer: Action Control (Button, Link, or Input control)
Action Controls in Spotfire (buttons, links, input fields) can be scripted or configured to trigger interactions like filtering, marking, or page navigation.
Question 7: What is the main advantage of using Spotfire's 'In-Database' analytics mode compared to the default in-memory mode?
- It stores analysis files directly in the browser's local cache
- It pushes computation to the database engine, enabling analysis of datasets too large to fit in memory (Correct answer)
- It automatically converts all data to CSV format before analysis
- It disables all Spotfire visualizations and shows only raw tables
Correct answer: It pushes computation to the database engine, enabling analysis of datasets too large to fit in memory
In-Database mode delegates aggregation and filtering queries to the source database, allowing Spotfire to analyze very large datasets without loading all data into RAM.
TIBCO Introduction To TIBCO Spotfire 4
In TIBCO Spotfire, which type of join is used by default when combining two data tables in the Add Rows transformation?