GIS Exam 1 UPDATED Questions and
CORRECT Answers
GIS Definition - CORRECT ANSWER - A computer-based system to aid in the collection,
maintenance, storage, analysis, output and distribution of spatial data and information
Spatial Data - CORRECT ANSWER - Data with a "spatial component" describing where
something is located in space (coordinates).
Spatially Related Questions (3) - CORRECT ANSWER - 1. The spatial distribution of
objects
2. The relationship between the spatial distribution of objects
3. The association of objects in the area
DBMS - CORRECT ANSWER - A computer based system that allows you to store,
update, query and analyze data
Spatial DBMS (GIS) - CORRECT ANSWER - A DBMS that has a spatial "awareness"
that allows you to analyze your data based on location and spatial relationships
GIS Analysis Process (5) - CORRECT ANSWER - 1. Scenario
2. Question
3. Planning
4. Define Protocols
5. Gather Data
6. Spatial Analysis
7. Results
8. Create Output/Report Results
, Data Model - CORRECT ANSWER - A consistent way of defining and representing real
world entities or phenomena in a GIS
Vector Data Models - CORRECT ANSWER - Points, lines, and polygons
Raster Data Models - CORRECT ANSWER - Pixels or grid cells
Categories of real world phenomena (2) - CORRECT ANSWER - 1. Descrete - Usually a
vector data model [EX] a road, river, sidewalk, fire hydrant
2. Continuous - Usually a raster data model [EX] elevation, temperature, rainfall
Types of data used to define features (2) - CORRECT ANSWER - 1. Coordinate data -
where
2. Attribute data - what
Categories of Coordinate Data (2) - CORRECT ANSWER - 1. Geographic Coordinate
System - Lat/Long
2. Projected Coordinate System - UTM, State Plane
Measurement Levels of Attribute Data (3) - CORRECT ANSWER - 1. Nominal -
descriptive data
2. Ordinal - implied order or ranking
3. Interval/ration - numeric data where both order and absolute difference are reflected in the
numbers
Vector Data Model Types (2) - CORRECT ANSWER - 1. Spaghetti Vector Data Model -
Does not enforce or record connections of line segments
2. Topological Vector Data Model - info is stored about topological relationships such as
adjacency and connectivity
CORRECT Answers
GIS Definition - CORRECT ANSWER - A computer-based system to aid in the collection,
maintenance, storage, analysis, output and distribution of spatial data and information
Spatial Data - CORRECT ANSWER - Data with a "spatial component" describing where
something is located in space (coordinates).
Spatially Related Questions (3) - CORRECT ANSWER - 1. The spatial distribution of
objects
2. The relationship between the spatial distribution of objects
3. The association of objects in the area
DBMS - CORRECT ANSWER - A computer based system that allows you to store,
update, query and analyze data
Spatial DBMS (GIS) - CORRECT ANSWER - A DBMS that has a spatial "awareness"
that allows you to analyze your data based on location and spatial relationships
GIS Analysis Process (5) - CORRECT ANSWER - 1. Scenario
2. Question
3. Planning
4. Define Protocols
5. Gather Data
6. Spatial Analysis
7. Results
8. Create Output/Report Results
, Data Model - CORRECT ANSWER - A consistent way of defining and representing real
world entities or phenomena in a GIS
Vector Data Models - CORRECT ANSWER - Points, lines, and polygons
Raster Data Models - CORRECT ANSWER - Pixels or grid cells
Categories of real world phenomena (2) - CORRECT ANSWER - 1. Descrete - Usually a
vector data model [EX] a road, river, sidewalk, fire hydrant
2. Continuous - Usually a raster data model [EX] elevation, temperature, rainfall
Types of data used to define features (2) - CORRECT ANSWER - 1. Coordinate data -
where
2. Attribute data - what
Categories of Coordinate Data (2) - CORRECT ANSWER - 1. Geographic Coordinate
System - Lat/Long
2. Projected Coordinate System - UTM, State Plane
Measurement Levels of Attribute Data (3) - CORRECT ANSWER - 1. Nominal -
descriptive data
2. Ordinal - implied order or ranking
3. Interval/ration - numeric data where both order and absolute difference are reflected in the
numbers
Vector Data Model Types (2) - CORRECT ANSWER - 1. Spaghetti Vector Data Model -
Does not enforce or record connections of line segments
2. Topological Vector Data Model - info is stored about topological relationships such as
adjacency and connectivity
