In a network, what is a link between two intersections called?

• A. Node
• B. Edge
• C. Point
• D. Vertex

Answer: (B)

In network theory, specifically in the context of GIS and routing analysis, the link between two intersections is referred to as an edge. An edge represents the connection or pathway that allows movement or flow between two nodes, which are the intersections themselves. This concept is fundamental in constructing network models, as edges facilitate the representation of streets, paths, or any connection that can be traversed.

Nodes are typically identified as the points where two or more edges meet, such as intersections or junctions. In contrast, a vertex is often a synonym for a node in some contexts but doesn't specifically denote the link. Points, while they can represent locations or features within a GIS, do not encapsulate the relationship between connections in a network. Thus, the term edge most accurately defines the connection in question, highlighting its role within the framework of network analysis.