Chapter 19

Question 1

buffer

Answer 1

a zone around a map feature measured in units of distance or time. A buffer is used for proximity analysis

Question 2

overlay

Answer 2

the geometric intersection of multiple datasets to combine, erase, modify, or update features in a new output dataset

Question 3

union

Answer 3

a topological overlay of two or more polygon spatial datasets which preserves the features that fall within the spatial extent of either input dataset

Question 4

intersect

Answer 4

a geometric integration of spatial datasets that preserves features or portions of features that fall within areas common to all input datasets

Question 5

merge

Answer 5

combines multiple input datasets of the same data type into a single, new output dataset. This tool can combine point, line or polygon feature classes or tables

Question 6

multipart polygon

Answer 6

a digital representation of a place or thing that has more than one part but is defined as one feature because it references one set of attributes.