Intro to GIS Final Exam Questions and
All Correct Answers.
Queries - Answer extract features or records from a feature class or from a table and isolate
them for further use
attribute query - Answer uses records in attribute table
spatial query - Answer uses location of one feature class in relation to another
query language - Answer SQL
Boolean operators - Answer AND, OR, XOR, NOT
containment joins - Answer a entirely inside b
intersection joins - Answer a crosses b
proximity joins - Answer a within x distance of b
spatial joins - Answer joining two layers or features based on their location to one another
distance join - Answer proximity based
inside join - Answer containment based
summarized join - Answer one-to-many
simple join - Answer one-to-one, many-to-one
geoprocessing - Answer using two or more functions/operations to solve a specific problem
combine operations - Answer intersect and union
extraction operations - Answer clip and erase
, intersect - Answer merges attributes but only keeps data common to both layers
union - Answer combines all layers and keeps all data
clip - Answer truncate features of one feature class to the borders of another
erase - Answer eliminate features of one feature class that fall within the boundary of
another
slivers - Answer produced when two overlaid layers do not line up together
XY tolerance - Answer used to reduce slivers in overlaying data
dissolve - Answer group features based by shared attribute value
buffer - Answer identify areas within a certain distance of a feature class
append - Answer combine features from 2+ feature classes into an already existing feature
class
raster uses - Answer topographic and thematic mapping, terrain and hydrological modeling,
environmental analysis, scientific visualization
raster sources - Answer ariel photography, remote sensing, digital elevation models, scanned
maps
raster coordinate system - Answer projected coordinate system
map algebra - Answer stacked rasters representing different attributes
euclidian distance - Answer shortest between two locations
interpolation - Answer using a set of measured values to estimate remaining values between
reclassify - Answer changes value of a raster according to a user-defined scheme
All Correct Answers.
Queries - Answer extract features or records from a feature class or from a table and isolate
them for further use
attribute query - Answer uses records in attribute table
spatial query - Answer uses location of one feature class in relation to another
query language - Answer SQL
Boolean operators - Answer AND, OR, XOR, NOT
containment joins - Answer a entirely inside b
intersection joins - Answer a crosses b
proximity joins - Answer a within x distance of b
spatial joins - Answer joining two layers or features based on their location to one another
distance join - Answer proximity based
inside join - Answer containment based
summarized join - Answer one-to-many
simple join - Answer one-to-one, many-to-one
geoprocessing - Answer using two or more functions/operations to solve a specific problem
combine operations - Answer intersect and union
extraction operations - Answer clip and erase
, intersect - Answer merges attributes but only keeps data common to both layers
union - Answer combines all layers and keeps all data
clip - Answer truncate features of one feature class to the borders of another
erase - Answer eliminate features of one feature class that fall within the boundary of
another
slivers - Answer produced when two overlaid layers do not line up together
XY tolerance - Answer used to reduce slivers in overlaying data
dissolve - Answer group features based by shared attribute value
buffer - Answer identify areas within a certain distance of a feature class
append - Answer combine features from 2+ feature classes into an already existing feature
class
raster uses - Answer topographic and thematic mapping, terrain and hydrological modeling,
environmental analysis, scientific visualization
raster sources - Answer ariel photography, remote sensing, digital elevation models, scanned
maps
raster coordinate system - Answer projected coordinate system
map algebra - Answer stacked rasters representing different attributes
euclidian distance - Answer shortest between two locations
interpolation - Answer using a set of measured values to estimate remaining values between
reclassify - Answer changes value of a raster according to a user-defined scheme
