NR 658 -- GIS Final Questions With
Complete Answers
The d"G"in da dGIS dstands dfor: d- dAnswer d- dGeographic
The dmost dimportant dcomponent dof da dGIS dis: d- dAnswer d- dPeople
A draster dGIS dis: d- dAnswer d- d-Digital dsatellite dimagery
-A dbunch dof dpixels
-equal darea dcells dor dgrids
Vector ddata dconsists dof dthe dfollowing: d- dAnswer d- d-lines
-polygons
-points
The duse dof dspatial ddata dor dapplied dgeography dhas dbeen daround: d- dAnswer d- dfor dover d3,000 dyears
A dGIS dis dan dexact dreplication dof dreal dworld dphenomena. d- dAnswer d- dFalse
Cartographic dobjects din da dGIS dare dtypically ddefined dby dtwo ddistinct dtypes dof ddata d(i.e.,a dGIS dis dmade
dup dof d2 ddata dtypes). dThese dare: d- dAnswer d- dspatial, drelational
Which dGIS ddata dformat dis dmore dvisually dpleasing dbut dmore dcomputationally dcomplex? d- dAnswer d-
dVector
There dare dmany dmore draster ddata dencoding d(compression) dmethods dbecause: d- dAnswer d- draster ddata
dtakes dup dmuch dmore dstorage dspace
Converting dbetween draster dand dvector dformat dhas dno dimpact don dthe dactual dGIS dlayer. d- dAnswer d-
dFalse
Geodesy dis: d- dAnswer d- dthe dscience dof dmeasuring dthe dshape dof dthe dearth
Which dterm dbest ddescribes dthe dearth: d- dAnswer d- da dgeoid
The d0 ddegree dline dof dlongitude dis dcalled: d- dAnswer d- dthe dprime dmeridian
A ddatum dis: d- dAnswer d- dan destablished dstandard dfrom dwhich
measurements dare dmade d(i.e., da dreference dsurface)
A dmap dprojection: d- dAnswer d- dtakes da d3D dearth dand dcreates da d2D dmap
Map dscale dis: d- dAnswer d- d-a dratio
, -Map ddistance/Ground ddistance
-unitless
Digitizing dis da dsimple dtask dand dcan dbe dperformed dby danyone dgiven dvery dlittle dtraining d- dAnswer d- dFalse
The damount dthat da dmap dis dgeneralized dis da dfunction dof: d- dAnswer d- d-the dfinal dmap dscale
-the dresolution drequired din dthe dmap d(also dcalled dthe dminimum dmapping dunit
-the dpurpose dof dthe dmap
Coordinate dtransformation dcan dbe ddefined das: d- dAnswer d- dregistration
GIS ddata din ddigital dformat dcan dbe dreadily dobtained dfrom dwhich dof dthe dfollowing dsources: d- dAnswer d- d-
National dand dInternational dAgencies
-The dUS dFederal dGovernment d
d-State dand dLocal dAgencies d
d-Private dCompanies, dNon-Profit dGroups, dand dNGO's
A dmap dof ddowntown dBoston dshowing ddetailed dand dexact dbuilding dshapes dwould dbe dconsidered: d-
dAnswer d- dlarge dscale
Spatial dscope dcan dbe ddefined das dfollows: d- dAnswer d- dthe darea doperated don dby dthe dspatial danalysis
Another dword dfor dclassification dis: d- dAnswer d- drecoding
Adjacency dis da dsimple dconcept dand dcan donly dbe ddefined dby dcommon dborders dtouching deach dother. d-
dAnswer d- dFalse
Once da dspatial ddata dlayer dhas dbeen drecoded, dit dis dvery dcommon dto dperform da: d- dAnswer d- ddissolve
Map dAlgebra dcan dbe ddefined das dfollows: d- dAnswer d- dthe dcell dby dcell dcombination dof draster
data dlayers
Spatial dscope dfor draster ddata dis ddifferent dthan dspatial dscope dfor dvector ddata: d- dAnswer d- dFalse
Overlay dis deasier din draster ddata dbecause:? d- dAnswer d- draster ddata dare dequal darea dgrids
Neighborhood dfunctions dare despecially dvaluable din draster ddata dand doften dinvolve: d- dAnswer d- dmoving
dwindows
A dmoving dwindow dis: d- dAnswer d- d-usually dsquare din dshape
-sometimes dirregularly dshaped
-most doften dodd dis dsize
-a dneighborhood dfunction
Complete Answers
The d"G"in da dGIS dstands dfor: d- dAnswer d- dGeographic
The dmost dimportant dcomponent dof da dGIS dis: d- dAnswer d- dPeople
A draster dGIS dis: d- dAnswer d- d-Digital dsatellite dimagery
-A dbunch dof dpixels
-equal darea dcells dor dgrids
Vector ddata dconsists dof dthe dfollowing: d- dAnswer d- d-lines
-polygons
-points
The duse dof dspatial ddata dor dapplied dgeography dhas dbeen daround: d- dAnswer d- dfor dover d3,000 dyears
A dGIS dis dan dexact dreplication dof dreal dworld dphenomena. d- dAnswer d- dFalse
Cartographic dobjects din da dGIS dare dtypically ddefined dby dtwo ddistinct dtypes dof ddata d(i.e.,a dGIS dis dmade
dup dof d2 ddata dtypes). dThese dare: d- dAnswer d- dspatial, drelational
Which dGIS ddata dformat dis dmore dvisually dpleasing dbut dmore dcomputationally dcomplex? d- dAnswer d-
dVector
There dare dmany dmore draster ddata dencoding d(compression) dmethods dbecause: d- dAnswer d- draster ddata
dtakes dup dmuch dmore dstorage dspace
Converting dbetween draster dand dvector dformat dhas dno dimpact don dthe dactual dGIS dlayer. d- dAnswer d-
dFalse
Geodesy dis: d- dAnswer d- dthe dscience dof dmeasuring dthe dshape dof dthe dearth
Which dterm dbest ddescribes dthe dearth: d- dAnswer d- da dgeoid
The d0 ddegree dline dof dlongitude dis dcalled: d- dAnswer d- dthe dprime dmeridian
A ddatum dis: d- dAnswer d- dan destablished dstandard dfrom dwhich
measurements dare dmade d(i.e., da dreference dsurface)
A dmap dprojection: d- dAnswer d- dtakes da d3D dearth dand dcreates da d2D dmap
Map dscale dis: d- dAnswer d- d-a dratio
, -Map ddistance/Ground ddistance
-unitless
Digitizing dis da dsimple dtask dand dcan dbe dperformed dby danyone dgiven dvery dlittle dtraining d- dAnswer d- dFalse
The damount dthat da dmap dis dgeneralized dis da dfunction dof: d- dAnswer d- d-the dfinal dmap dscale
-the dresolution drequired din dthe dmap d(also dcalled dthe dminimum dmapping dunit
-the dpurpose dof dthe dmap
Coordinate dtransformation dcan dbe ddefined das: d- dAnswer d- dregistration
GIS ddata din ddigital dformat dcan dbe dreadily dobtained dfrom dwhich dof dthe dfollowing dsources: d- dAnswer d- d-
National dand dInternational dAgencies
-The dUS dFederal dGovernment d
d-State dand dLocal dAgencies d
d-Private dCompanies, dNon-Profit dGroups, dand dNGO's
A dmap dof ddowntown dBoston dshowing ddetailed dand dexact dbuilding dshapes dwould dbe dconsidered: d-
dAnswer d- dlarge dscale
Spatial dscope dcan dbe ddefined das dfollows: d- dAnswer d- dthe darea doperated don dby dthe dspatial danalysis
Another dword dfor dclassification dis: d- dAnswer d- drecoding
Adjacency dis da dsimple dconcept dand dcan donly dbe ddefined dby dcommon dborders dtouching deach dother. d-
dAnswer d- dFalse
Once da dspatial ddata dlayer dhas dbeen drecoded, dit dis dvery dcommon dto dperform da: d- dAnswer d- ddissolve
Map dAlgebra dcan dbe ddefined das dfollows: d- dAnswer d- dthe dcell dby dcell dcombination dof draster
data dlayers
Spatial dscope dfor draster ddata dis ddifferent dthan dspatial dscope dfor dvector ddata: d- dAnswer d- dFalse
Overlay dis deasier din draster ddata dbecause:? d- dAnswer d- draster ddata dare dequal darea dgrids
Neighborhood dfunctions dare despecially dvaluable din draster ddata dand doften dinvolve: d- dAnswer d- dmoving
dwindows
A dmoving dwindow dis: d- dAnswer d- d-usually dsquare din dshape
-sometimes dirregularly dshaped
-most doften dodd dis dsize
-a dneighborhood dfunction
