GIS FINAL EXAM WITH ACCURATE
SOLUTIONS
geographic info system - ANS-What does GIS stand for?
-people (most important)
-hardware
-spatial data
-software - ANS-what are four components of a GIS
-manipulate dta
-store data
-analyze data
-display data - ANS-what are four things a GIS does
a cartographic representation of a geographic reality - ANS-what is a map
-equal area grid cells, requires more storage space
-points, lines, and polygons - ANS-raster and vector data
-what is next to what and what is connected to what - ANS-topology
to organize and find info - ANS-what is the purpose of having data base structures
-1 to 1 parent child relationship
-1 parent to multiple children - ANS-Hierarchical data base vs network data base
structure
relational - ANS-what type of data base structure is most commonly used in a GIS?
-to show a 3D earth on a 2D surface - ANS-what is the main purpose of a map
projection
cylindrical has the least amount of distortion - ANS-what type of map projections is used
to project an entire globe, why is this type best?
the quality of the data - ANS-what is the most important factor when obtaining GIS data
Y, x-x - ANS-Run length compression technique
, the ratio between the distance between two points on the map and the same on the
ground, md/gd - ANS-Map Scale Concept
small scale contains little detail while large scale contains lots of detail and is zoomed in
- ANS-small scale vs large scale
registration
it is important because the data has to overlay - ANS-coordinate transformation:
definition/importance
USDA
UNH
Forestry Service
NYC Urban Planning office
NASA - ANS-sources of GIS data
1.full length encoding
2.scanning (most likely)
3. digitizing - ANS-3 Ways to Physically Input GIS data
a starting point to measure from - ANS-what is a datum
NAD27
NAD 83
WGS84 - ANS-Two common US datums
1. Lat/Long
2.UTM
3.State Planer - ANS-3 Most Common Coordinate Systems
State Planer because it covers four different systems - ANS-You are interested in
analyzing loon habitat in the great lakes region covering four different states. Which is
the worst choice to use?
science of measuring the shape of the earth - ANS-Geodesy
garbage in, garbage out - ANS-GIGO
AND: areas they overlap
NOT: areas they don't overlap
Or: areas that they both cove - ANS-Boolean Algebra
the area operated on by the spatial analysis - ANS-spatial scope
-neighborhood
-global
SOLUTIONS
geographic info system - ANS-What does GIS stand for?
-people (most important)
-hardware
-spatial data
-software - ANS-what are four components of a GIS
-manipulate dta
-store data
-analyze data
-display data - ANS-what are four things a GIS does
a cartographic representation of a geographic reality - ANS-what is a map
-equal area grid cells, requires more storage space
-points, lines, and polygons - ANS-raster and vector data
-what is next to what and what is connected to what - ANS-topology
to organize and find info - ANS-what is the purpose of having data base structures
-1 to 1 parent child relationship
-1 parent to multiple children - ANS-Hierarchical data base vs network data base
structure
relational - ANS-what type of data base structure is most commonly used in a GIS?
-to show a 3D earth on a 2D surface - ANS-what is the main purpose of a map
projection
cylindrical has the least amount of distortion - ANS-what type of map projections is used
to project an entire globe, why is this type best?
the quality of the data - ANS-what is the most important factor when obtaining GIS data
Y, x-x - ANS-Run length compression technique
, the ratio between the distance between two points on the map and the same on the
ground, md/gd - ANS-Map Scale Concept
small scale contains little detail while large scale contains lots of detail and is zoomed in
- ANS-small scale vs large scale
registration
it is important because the data has to overlay - ANS-coordinate transformation:
definition/importance
USDA
UNH
Forestry Service
NYC Urban Planning office
NASA - ANS-sources of GIS data
1.full length encoding
2.scanning (most likely)
3. digitizing - ANS-3 Ways to Physically Input GIS data
a starting point to measure from - ANS-what is a datum
NAD27
NAD 83
WGS84 - ANS-Two common US datums
1. Lat/Long
2.UTM
3.State Planer - ANS-3 Most Common Coordinate Systems
State Planer because it covers four different systems - ANS-You are interested in
analyzing loon habitat in the great lakes region covering four different states. Which is
the worst choice to use?
science of measuring the shape of the earth - ANS-Geodesy
garbage in, garbage out - ANS-GIGO
AND: areas they overlap
NOT: areas they don't overlap
Or: areas that they both cove - ANS-Boolean Algebra
the area operated on by the spatial analysis - ANS-spatial scope
-neighborhood
-global
