AND CORRECT ANSWERS GRADED A+
● A vector data model uses which of the following coordinate pair types
to build curvature within a line?
(Choose the best response)
A. Vertices
B. Points
C. Floating Points
D. Nodes. Answer: A. Vertices
● GIS differs from surveying and mapping by introducing (Choose the
best response)
A. Attribute descriptions
B. Spatial analysis
C. Location determination
D. Temporal information. Answer: B. Spatial analysis
● What is a datum? (Choose the best response)
A. A mathematical model
B. The mathematical model related to real world features
,C. Real world features projected with minimum distortion from a round
earth to flat map.
D. A system of coordinates.. Answer: B. The mathematical model related
to real world features
● Which method is used to align an unreferenced dataset with one that
has spatial reference information?
(Choose the best response)
A. Scaling
B. Reprojecting
C. Georeferencing
D. defining projections. Answer: C. Georeferencing
● Control points are best described as (Choose the best response)
A. Areas on the map where projection can easily change
B. Points on the map that do not have a spatial reference
C. Points in the data that share the same datum, no matter how the
datasets are altered
D. Common locations used in aligning two datasets. Answer: D.
Common locations used in aligning two datasets
● In a map showing contours, the name of the darker contour lines is
(Choose the best response)
A. Index contours
, B. Key contours
C. Lines of deviation
D. Lines of Elevations. Answer: A. Index contours
● Imaginary lines on a map that represent areas of constant elevation are
(Choose the best response)
A. Bands
B. Contours
C. Digital line graphs
D. Collars. Answer: B. Contours
● The inherent ability to suggest pattern in the phenomena they
represent is a fundamental use of
(Choose the best response)
A. Maps
B. Tables
C. Layers
D. Point. Answer: A. Maps
● If you are making a web map of sampling locations, streams and
watershed areas, in what order would you
place the layers on the map? (Choose the best response)
A. Sampling locations, wetland areas, streams