Podcast
Questions and Answers
In a hierarchical tree, the root node can have multiple children nodes.
In a hierarchical tree, the root node can have multiple children nodes.
True
In a hierarchical tree, the depth of the tree is equal to the maximum number of children a node can have.
In a hierarchical tree, the depth of the tree is equal to the maximum number of children a node can have.
False
In a binary tree, each node can have up to three children nodes.
In a binary tree, each node can have up to three children nodes.
False
A leaf node in a hierarchical tree is a node that does not have any ancestors.
A leaf node in a hierarchical tree is a node that does not have any ancestors.
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Node-Link Diagram is a visualization approach where nodes are contained within other nodes.
Node-Link Diagram is a visualization approach where nodes are contained within other nodes.
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A tree is a data structure used to represent hierarchical relationships?
A tree is a data structure used to represent hierarchical relationships?
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The basic building block of a tree data structure is called a leaf?
The basic building block of a tree data structure is called a leaf?
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Information objects are examples of subjects of interest in a data model?
Information objects are examples of subjects of interest in a data model?
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The suitability of a visualization technique strongly depends on the number of dimensions in the data?
The suitability of a visualization technique strongly depends on the number of dimensions in the data?
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Hierarchical relationships can be represented in a data model using trees and hierarchies?
Hierarchical relationships can be represented in a data model using trees and hierarchies?
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Study Notes
Hierarchical Trees
- A root node in a hierarchical tree can have multiple children nodes.
Tree Structure
- The depth of a hierarchical tree is equal to the maximum number of children a node can have.
Binary Trees
- In a binary tree, each node can have up to two children nodes (not three).
Leaf Nodes
- A leaf node in a hierarchical tree is a node that does not have any children (not ancestors).
Visualization
- Node-Link Diagram is a visualization approach where nodes are connected by links (not contained within other nodes).
Trees in Data Structures
- A tree is a data structure used to represent hierarchical relationships.
Basic Building Blocks
- The basic building block of a tree data structure is called a node (not a leaf).
Data Modeling
- Information objects are examples of entities or objects of interest in a data model (not subjects of interest).
- The suitability of a visualization technique strongly depends on the number of dimensions in the data.
- Hierarchical relationships can be represented in a data model using trees and hierarchies.
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Description
Test your knowledge on visualizing hierarchical data and data models in the context of information objects and attributes. This quiz covers different dimensionality and data types to represent aspects of the real world.
![[05/Rokel/53]](https://images.unsplash.com/photo-1437964706703-40b90bdf563b?crop=entropy&cs=srgb&fm=jpg&ixid=M3w0MjA4MDF8MHwxfHNlYXJjaHw0fHx0cmVlJTIwY2hhcnQlMjBkYXRhJTIwdmlzdWFsaXphdGlvbiUyMGhpZXJhcmNoaWNhbCUyMGRhdGElMjBpbmZvcm1hdGlvbiUyMHZpc3VhbGl6YXRpb258ZW58MXwwfHx8MTcwOTgwMjA1OXww&ixlib=rb-4.0.3&q=85&w=800)
![[05/Rokel/55]](https://images.unsplash.com/reserve/bOvf94dPRxWu0u3QsPjF_tree.jpg?crop=entropy&cs=srgb&fm=jpg&ixid=M3w0MjA4MDF8MHwxfHNlYXJjaHwxfHx0cmVlJTIwbWFwJTIwZGF0YSUyMHZpc3VhbGl6YXRpb24lMjBoaWVyYXJjaGljYWwlMjBkYXRhJTIwcXVhbnRpdGF0aXZlJTIwdmFyaWFibGV8ZW58MXwwfHx8MTcwOTgwMjI1OHww&ixlib=rb-4.0.3&q=85&w=800)
