GIS Data Concepts

Question 1

Four rules of field naming

Answer 1

1. Must start with a letter,
2. Only letters, numbers, and underscores,
3. Less than 64 characters in length,
4. Will be shortened to 10 characters in ArcGIS pro

Question 2

Three rules of Table Joins

Answer 2

Both are text, both are integers, or both are real numbers

Question 3

How far back does operational GIS go?

Answer 3

1960s

Question 4

What does any GIS project normally begin with?

Answer 4

Data acquisition

Question 5

An open source GIS software program

Answer 5

QGIS

Question 6

Programming language for writing scripts in ArcGIS

Answer 6

Python

Question 7

Discrete objects are:

Answer 7

Objects that exist in one place and not in another

Question 8

Examples of discrete objects:

Answer 8

Roads, houses, states

Question 9

Continuous data is:

Answer 9

A quantity that exists over the entire map area, it is always present only changing in value

Question 10

Examples of continuous data include:

Answer 10

Elevation, temperature, precipitation

Question 11

The vector model is best for:

Answer 11

Discrete data

Question 12

The raster model is best for:

Answer 12

Continuous data (think temperature maps)

Question 13

In a vector data model, all items are represented as:

Answer 13

Points, lines, and polygons

Question 14

In a raster data model, all items are represented as:

Answer 14

Equally spaced and sized grid cells, each representing a value.