Chapter 1: GIS Data

Question 1

Discrete data represents:

Answer 1

Real world objects; roads, houses, states

Question 2

Continuous data represents:

Answer 2

Changes in value from place to place; elevation, temperature,precipitation

Question 3

Which data type exists over the entire map area?

Answer 3

Continuous

Question 4

A collection of similar objects with the same attributes, stored as a single unit is called a;

Answer 4

Feature class

Question 5

Rasters store data as a;

Answer 5

Series of cells or pixels, stored as an array

Question 6

What’s stores features in a raster format

Answer 6

Discrete rasters

Question 7

What stores surfaces or fields of variables that change continuously?

Answer 7

Continuous rasters

Question 8

What coordinate system is based on spherical coordinates and has degrees of latitude and longitude?

Answer 8

Unprojected (GCS)

Question 9

What coordinate system converts spherical coordinates to flat, planar coordinates?

Answer 9

Projected

Question 10

Geomatics accuracy is;

Answer 10

How closely the locations correspond to the actual location

Question 11

Thematic accuracy is;

Answer 11

How accurate the attributes are