Fundamentals of Surveying (FS) Practice Exam

A CADD file is categorized as which type of structure?

1. Vector data structure

2. Metadata structure

3. Raster data structure

4. None of the above

The correct answer is: Vector data structure

A CADD file is categorized as a vector data structure because it primarily consists of geometric entities defined by coordinates, such as points, lines, polygons, and curves. These entities are represented mathematically, allowing for precise manipulation and analysis of the graphical information. Vector data structures are ideal for representing discrete features and attributes in a way that can maintain high levels of detail, making them particularly useful for architectural, engineering, and surveying drawings. In contrast, raster data structures represent information as a grid of pixels or cells, making them more suitable for imagery and continuous surface data, like aerial photographs or digital elevation models. Metadata structures pertain to information that describes other data but do not characterize the geometric aspects of the CADD files themselves. Thus, categorical knowledge of data types helps differentiate how various tools and software interact with and utilize the geometric data.