MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

DATA STRUCTURES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
____ is any node with an out-degree of zero.
A
root
B
internal node
C
parent
D
leaf
Explanation: 

Detailed explanation-1: -Leaf node: A node with outdegree zero is known as leaf node. A leaf node is also known as terminal node.

Detailed explanation-2: -no. of children a node in binary tree is 2. Hence, leaf node is of degree 0.

Detailed explanation-3: -Leaf Nodes In a directed tree with nodes that has an out-degree of 0 is called a Leaf node or Terminal node.

Detailed explanation-4: -The out-degree of a node is equal to the number of edges with that node as the source.

Detailed explanation-5: -A tree is a nonlinear data structure, compared to arrays, linked lists, stacks and queues which are linear data structures. A tree can be empty with no nodes or a tree is a structure consisting of one node called the root and zero or one or more subtrees.

There is 1 question to complete.