Question

A zone of a specified width around a point, line or polygon is known in GIS as

• A. \( \text{Polygon overlay} \)
• B. \( \text{Buffering} \)
• C. \( \text{Dissolving} \)
• D. \( \text{Clipping} \)

Hint:

Imagine drawing a circle around a point, a band around a line, or expanding a polygon outwards – that's buffering.

Answer 1

The Correct Option is B

In GIS, buffering is the process of creating a zone of a specified width around a point, line, or polygon feature. This creates a new area that is within a certain distance of the original feature. Polygon overlay combines spatial and attribute data from two or more polygon layers. Dissolving removes boundaries between adjacent features with the same attribute values. Clipping extracts features from one layer based on the spatial extent of another layer.