MCQs on Data Modeling Basics | Qlikview MCQ Questions
Master the essentials of data modeling in QlikView with this curated set of MCQs. Topics include understanding data relationships, associative data models, table viewers, and resolving basic modeling issues for seamless analysis.
Understanding Data Relationships
- What is the primary purpose of data modeling in QlikView?
- a) To define security rules
- b) To create associative links between data tables
- c) To perform data transformation
- d) To design visualizations
- What is a key relationship type in QlikView’s data model?
- a) One-to-one
- b) One-to-many
- c) Many-to-many
- d) All of the above
- Which field type is used to link tables in QlikView?
- a) Calculated fields
- b) Key fields
- c) Dimension fields
- d) Measure fields
- How does QlikView handle synthetic keys?
- a) It merges them automatically
- b) It flags them as conflicts
- c) It creates additional tables
- d) It deletes duplicate keys
- What happens when two tables in QlikView share a field name?
- a) A link is automatically created between the tables
- b) An error occurs in the data model
- c) The field is renamed automatically
- d) The tables are merged
- What is the result of linking unrelated fields in QlikView?
- a) Circular references
- b) Synthetic keys
- c) Data duplication
- d) Data loss
- How can you avoid circular references in QlikView?
- a) Remove unnecessary fields
- b) Rename fields to avoid duplication
- c) Use link tables
- d) All of the above
- Which symbol represents a relationship in QlikView’s data model viewer?
- a) Arrow
- b) Line
- c) Dashed line
- d) Double-headed arrow
- What is the effect of a missing link between tables in QlikView?
- a) The tables cannot be loaded
- b) Data from both tables is ignored
- c) Data association does not occur
- d) No effect
- What is the importance of primary keys in QlikView?
- a) They create dimensions for charts
- b) They act as unique identifiers for records
- c) They enhance dashboard performance
- d) They reduce synthetic keys
Associative Data Model in QlikView
- What is the core principle of QlikView’s associative model?
- a) Data filtering
- b) Data linking across tables through common fields
- c) Aggregating unrelated fields
- d) Storing data in silos
- What does green color in a QlikView associative model represent?
- a) Selected values
- b) Possible values
- c) Excluded values
- d) Duplicate values
- What is the advantage of QlikView’s associative model?
- a) It supports disconnected tables
- b) It allows for real-time association of fields
- c) It enforces strict joins
- d) It reduces memory usage
- Which component connects multiple data tables in QlikView?
- a) Dimension fields
- b) Common fields
- c) Unique constraints
- d) Filters
- How does QlikView handle unassociated tables?
- a) It creates an error
- b) It ignores the unlinked data
- c) It creates synthetic links
- d) It allows the data to remain unassociated
- What feature enables interactive data exploration in QlikView?
- a) Associative model
- b) Link tables
- c) Circular references
- d) Scripting
- What does the gray color indicate in QlikView’s associative data model?
- a) Current selection
- b) Possible values
- c) Excluded values
- d) Duplicate data
- Which data modeling concept prevents duplication and ensures normalization in QlikView?
- a) Star schema
- b) Associative modeling
- c) Circular references
- d) Data cleaning
- What type of key connects multiple data tables in an associative model?
- a) Foreign key
- b) Synthetic key
- c) Common field key
- d) Calculated key
- Which feature ensures a seamless user experience when filtering data in QlikView?
- a) Drill-down
- b) Associative navigation
- c) Master items
- d) Static reports
Table Viewer and Data Structure Visualization
- What is the purpose of QlikView’s Table Viewer?
- a) To load data into the application
- b) To visualize data model relationships
- c) To manage QVD files
- d) To create synthetic tables
- How can you open the Table Viewer in QlikView?
- a) Use the “File” menu
- b) Press Ctrl+T
- c) Navigate to “Edit Script”
- d) Click “View Data”
- What is displayed in QlikView’s Table Viewer?
- a) Data tables and their relationships
- b) Filtered data results
- c) Chart visualizations
- d) Data load scripts
- Which action can be performed in QlikView’s Table Viewer?
- a) Edit data fields
- b) Delete relationships
- c) Rename fields
- d) Visualize data connections
- How can you identify synthetic keys in QlikView’s Table Viewer?
- a) They are highlighted in yellow
- b) They are marked with a special icon
- c) They are listed in a separate pane
- d) They are displayed as additional tables
- What is the default layout of the Table Viewer in QlikView?
- a) Hierarchical
- b) Circular
- c) Grid
- d) Network
- What happens when you rename a field in the Table Viewer?
- a) The relationship is removed
- b) A synthetic key is created
- c) The relationship is updated automatically
- d) The data is reloaded
- Which visualization helps detect circular references in QlikView?
- a) Heatmap
- b) Relationship graph in Table Viewer
- c) Pivot table
- d) Association chart
Resolving Basic Data Modeling Issues
- What is the primary step in resolving synthetic key issues?
- a) Adding more fields
- b) Renaming fields to reduce overlap
- c) Removing all links
- d) Adding constraints
- What is the purpose of using link tables in QlikView?
- a) To resolve circular references
- b) To improve data visualization
- c) To connect unrelated tables via common fields
- d) To aggregate data
Answer Key
| Qno | Answer (Option with Text) |
|---|---|
| 1 | b) To create associative links between data tables |
| 2 | d) All of the above |
| 3 | b) Key fields |
| 4 | c) It creates additional tables |
| 5 | a) A link is automatically created between the tables |
| 6 | b) Synthetic keys |
| 7 | d) All of the above |
| 8 | b) Line |
| 9 | c) Data association does not occur |
| 10 | b) They act as unique identifiers for records |
| 11 | b) Data linking across tables through common fields |
| 12 | a) Selected values |
| 13 | b) It allows for real-time association of fields |
| 14 | b) Common fields |
| 15 | d) It allows the data to remain unassociated |
| 16 | a) Associative model |
| 17 | c) Excluded values |
| 18 | a) Star schema |
| 19 | c) Common field key |
| 20 | b) Associative navigation |
| 21 | b) To visualize data model relationships |
| 22 | b) Press Ctrl+T |
| 23 | a) Data tables and their relationships |
| 24 | d) Visualize data connections |
| 25 | d) They are displayed as additional tables |
| 26 | d) Network |
| 27 | c) The relationship is updated automatically |
| 28 | b) Relationship graph in Table Viewer |
| 29 | b) Renaming fields to reduce overlap |
| 30 | c) To connect unrelated tables via common fields |