Western Governors University (WGU) ICSC2100 C949 Data Structures and Algorithms I Practice Exam

A node is best defined as a collection of data and connections to other nodes. In data structures, particularly in linked lists, trees, and graphs, a node typically serves as the fundamental unit that contains both the data itself and references (or pointers) to other nodes. This structure allows for the organization and management of data in a way that facilitates efficient access and manipulation.

For example, in a linked list, each node contains a value and a pointer to the next node in the sequence, effectively forming a chain of nodes. In tree structures, a node contains data and may have pointers to child nodes, allowing for hierarchical representation. This characteristic of holding data along with references to facilitate relationships with other nodes is what distinctly defines a node in various data structure contexts.