Question

Which of the following data format for ArcView GIS defines the geometry and attribute of geographically referenced objects by three specific files—main file, index file, and a database table?

• A. ArcInfo EOO
• B. Shapefiles
• C. ArcInfo Coverage
• D. Computer Graphics Metafile

Hint:

Shapefiles = .shp + .shx + .dbf → stores geometry + attributes in ArcView.

Answer 1

The Correct Option is B

The question is asking about a data format for ArcView GIS that uses three specific files to define the geometry and attributes of geographically referenced objects. Let's analyze the options given:

1. ArcInfo EOO: This is not a format associated with defining geometry and attributes using three specified files (main file, index file, database table).
2. Shapefiles: This format indeed uses three specific files:

   • .shp - the main file that stores the geometry of each feature.
   • .shx - the index file that stores the index of the geometry.
   • .dbf - the database table that stores attribute data in dBASE format.

   Thus, shapefiles define geometry and attributes using these three files.
3. ArcInfo Coverage: This is a different format used in GIS, which does not specifically rely on a main, index, and a database table file structure.
4. Computer Graphics Metafile: This is not related to the format used in ArcView GIS for defining geographic data as described.

Based on this analysis, the correct answer is "Shapefiles".