Tree and Graph Data Structures

Front

What is a tree in data structures?

Back

A tree is a connected graph without any circuits.

Front

What defines a tree in terms of paths between vertices?

Back

If in a graph, there is one and only one path between every pair of vertices, then the graph is called a tree.

Front

What type of data structure is a tree?

Back

A tree is a non-linear data structure that organizes data in a hierarchical structure.

Front

What is the root node in a tree?

Back

The starting node from where the tree originates is called the root node.

Front

What is an edge in a tree?

Back

The connecting link between any two nodes is called an edge.

Front

What is a parent node?

Back

The node which has a branch from it to any other node is called a parent node.

Front

What is a child node?

Back

The node which is a descendant of some node is called a child node.

Front

What are siblings in a tree?

Back

Nodes which belong to the same parent are called siblings.

Front

What is the degree of a node?

Back

Degree of a node is the total number of children of that node.

Front

What is an internal node?

Back

The node which has at least one child is called an internal node.