Test your basic knowledge |

GIS: Geographic Information Systems

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. 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.






2. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






3. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






4. A tabular file containing rows and columns; descriptive attributes about some object such as a geographic feature are contained in each row






5. Can assume all values between any two specific values. They are obtained by measuring.






6. 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.






7. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






8. Converts what entities into objects in the computer 1. Geometry (points - lines - polygons). 2. Measurement of attributes. 3. Accuracy &/or error.






9. Accuracy - reliability - responsibility.






10. The acquisition of data about Earth's surface from a satellite orbiting the planet or other long-distance methods.






11. Blue - Green - Red - NIR....






12. Preserve Direction






13. Google Maps or Microsoft Bing.






14. The 3 _____: 1. True. 2. Magnetic. 3. Grid.






15. The 5 components of a TIN: NETHT - 1. Nodes 2. Edges 3. Triangles 4. ___ 5. Topology.






16. Real Things (trees - forests - cities etc).






17. Contour lines never _______






18. 80 % of all information contain _________






19. The reverse of each other.






20. Defined by NOIR NOIR N-Nominal - qualitive data. O-Ordinal - order or ranking. I-Interval - numeric scale - arbitrary units. R - Ratio - fixed origin - continuous scale.






21. Connect & travel between landmarks by moving thru space.






22. _________ of the Real World: (S&E - S&S - G&A) 1. Selection & Elimination. 2. Simplification & Smoothing. 3. Generalization & Aggregation.






23. To avoid corrupt data!






24. Classes based on natural groupings through examination of histogram (good: minimizes differences bad: data range uneven)






25. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






26. A process of mathematical conversion.






27. Maps are restricted to a __________.






28. The ability to link files together.






29. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






30. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






31. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






32. Arcs only ___ at Nodes






33. Digital Elevation Model






34. Lines that connect points of equal value.






35. Preserve Shape






36. Geographic Coordinate System.






37. Points - Polygons - Lines






38. The smallest pixel size visible in an image - the limit of magnification






39. The 5 key concepts in Geography & GIS (LDDSN) 1. Location. 2. _________. 3. Distance. 4. Space. 5. Navigation.






40. Uses coordinates (X -Y) to represent spatial features. Scale matters involve what Polygons<>points. Polygons<>lines.






41. The 5 __________: TTCETH - 1. Triangle table 2. Triangle-Node table 3. Coordinate table 4. Triangle-Edge table 5. Hull-Edge table.






42. Smoothing & Shape abstraction.






43. An assignment of geographic coordinates to locations.






44. GIS is ________ - spatial analysis & dependent on the computer.






45. Shift in delivery (eg - require user interaction).






46. Regulary spaced sample of points representing a surface.






47. Thematic map that uses dots to represent the frequency of a variable in a given area.






48. Can not be made from other colors






49. A map containing information on only one topic or theme.






50. Triangulated Irregular Network.







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests