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Test your basic knowledge |
GIS: Geographic Information Systems
Start Test
Study First
Subject
:
it-skills
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Area of the Earth that is displayed in each image
Temporal Resolution
Swath Width
Authority
Vector data models
2. Geographic Coordinate System.
Authority
LandSAT TM Bands
Vector data models
GCS
3. 1. An array of regulary spaced cells or pixels. 2. Each cell holds attributes (values).
Raster
7.5' Map
VRQ
Dot Density Map
4. Identify unique points - patterns or features in space.
Toponymy
Thematic Maps
NODES
Landmark knowledge
5. Description by name: ex London
Continuous Variables
Data models
Vector data models
Nominal Location
6. Classes based on natural groupings through examination of histogram (good: minimizes differences bad: data range uneven)
GCS
Natural Breaks
Reference maps
Map Projection
7. A tabular file containing rows and columns; descriptive attributes about some object such as a geographic feature are contained in each row
Parts of Map
Land Ordinance
Attribute Tabl
Route knowledge
8. Points taken at regular intervals from the cumulative distribution function (CDF) of a random variable.
Structure
Topology
Quantile
TIN Topology Tables
9. Thematic map that uses dots to represent the frequency of a variable in a given area.
Grasslands
Dot Density Map
Simplification
Join
10. 3 topological concepts: 1. Connectivity - arcs connect to each other at nodes. 2._______ - arcs that connect to surround an area define a polygon. 3. Contiguity - arcs have direction & left & right sides.
Natural Breaks
Area definition
Quantile
Grasslands
11. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.
Primary Color
Abstraction CLD
Spatial analysis
WGS84
12. The acquisition of data about Earth's surface from a satellite orbiting the planet or other long-distance methods.
Datum
Remote Sensing
Map Projection
Equidistant Map Projections
13. A Complete frame
Equal Area Projections
Map Projection
WGS84
Primary Color
14. Converts what entities into objects in the computer 1. Geometry (points - lines - polygons). 2. Measurement of attributes. 3. Accuracy &/or error.
GCS
Data Modelling
WGS84
Continuous Variables
15. User generated content (UGC). Volunteered geog. info (VGI). Professional vs amateur. Neogeography vs GIS.
TIN Topology Tables
Authority
Maps
Arc-node topology
16. Assigning location information to various media (photos - video - music).
TIN
Geotagging
Vector data models
7.5' Map
17. HAL - H-Human nature. A-Arbitrary/socially constructed. L-Loss of info (hiding variance within a class or group).
Data Classification
Abstraction
TIN Topology Tables
TIN
18. The 4 elements or ______: 1. Cell Value - each cell carries a value. 2. Cell size - this determines the resolution. 3. Raster bands - Can have single or multiple bands. 4. Spatial Reference - Raster data must have spatial reference.
Intersect
Raster Data Model
Equal Interval
MODIS Bands
19. A line segment between 2 nodes -1 of which is a start node & the other an end node.
Spatial analysis
Arcs
World
API
20. Regulary spaced sample of points representing a surface.
Geocoding
Polar Stereographic Projections
Multi-scalar
Lattice Model
21. A process of mathematical conversion.
Map Projection
Quantile
GCS
Mash up
22. Connect & travel between landmarks by moving thru space.
Route knowledge
Bands
Thematic Maps
Primary Color
23. Points - Polygons - Lines
TIN Topology Tables
Vector Data Forms
Primary Color
Direction
24. The 3 _____: 1. True. 2. Magnetic. 3. Grid.
Norths
7.5' Map
Primary key
VRQ
25. Precision of a measurement with respect to time
Intersect
VRQ
North Arrow
Temporal Resolution
26. The smallest pixel size visible in an image - the limit of magnification
Spatial Resolution
Equidistant Map Projections
Toponymy
Primary key
27. A data classification method that divides a set of attribute values into groups that contain an equal range of values
Arcs
Mash up
Bands
Equal Interval
28. Accuracy - reliability - responsibility.
Route knowledge
Primary Color
Temporal Resolution
Quality GIGO
29. To avoid corrupt data!
Arc-node topology
World
Verify Query
North Arrow
30. The study of place names - origins - history & meanings.
Route knowledge
Quantile
Toponymy
Vertical frame
31. Smoothing & Shape abstraction.
Discrete Variables
Land Ordinance
Absolute Location
Simplification
32. The range of wavelengths sampled by a remote sensor.
Spectral Resolution
GCS
Toponymy
Area definition
33. Representative fraction
Different databases
RF
Verify Query
VRQ
34. Most popular form of USGS Map
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35. DBMS used for: _______ - access - organize & edit.
Continuous Variables
Join
Structure
TIN
36. Map in which some thematic mapping variable is substituted for area (like a graph in a map)
World
Natural Breaks
LandSAT TM Bands
Cartogram
37. The nature of relationships & connectivity between them.
Primary key
Topology
Structure
Quantile
38. Real Things (trees - forests - cities etc).
Data Classification
Entities
Neogeography
Thematic maps
39. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.
Quantile
Thematic Maps
DEM
VRQ
40. Can not be made from other colors
Entities
Primary Color
Subsystems
Objects
41. Files in the DB can be linked or joined using the _______
RF
Primary key
Relative Location
Entities
42. When distances from the center of the projection to any other place on the map are uniform in all directions.
TIN
NODES
Equidistant Map Projections
World
43. Townships were six miles square - and were subdivided into 36 sections - each section consisting of one square mile. One section of each township was set aside to support public education - and the remaining sections were to be sold at public auction
Polar Stereographic Projections
Land Ordinance
World
Different databases
44. _________ of the Real World: (S&E - S&S - G&A) 1. Selection & Elimination. 2. Simplification & Smoothing. 3. Generalization & Aggregation.
Abstraction
Swath Width
Entities
Verify Query
45. Maps are restricted to a __________.
Relational DBMS
Compass & human analysis
Geotagging
Route knowledge
46. The 4 types of ___________:SADD. 1. S - Shape: Conformal. 2. A - Area: Variant. 3. D - Direction: Preserved. 4. D - Distance: Variant.
VRQ
Polar Stereographic Projections
Raster
GCS
47. 2 reasons why Topology matters: 1. Error detection. 2. ___________.
Cartogram
Topology
Geoparsing
Spatial analysis
48. People creating their own maps - on their own terms by combining elements of an existing toolset.
Primary Color
Neogeography
Relative Location
7.5' Map
49. Triangulated Irregular Network.
Datum
Navigational Maps
Swath Width
TIN
50. Fixed entitites - Can only take a specific value (Ex. number of students in a class - anything that is counted and not measured)
Vector data models
Geotagging
Thematic maps
Discrete Variables