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






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






3. A line segment between 2 nodes -1 of which is a start node & the other an end node.






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






5. The 2 _____ in data modelling: 1. Database. 2. Data Storage.






6. Points - Polygons - Lines






7. Digital Elevation Model






8. The reverse of each other.






9. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






10. 1. An array of regulary spaced cells or pixels. 2. Each cell holds attributes (values).






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






12. Google Maps or Microsoft Bing.






13. 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.






14. When distances from the center of the projection to any other place on the map are uniform in all directions.






15. When areas on a map maintain the same proportional relationship to the areas on the earth that they represent.






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






17. The study of place names - origins - history & meanings.






18. Sailors and pilots use these maps to navigate






19. DBMS used for: _______ - access - organize & edit.






20. The nature of relationships & connectivity between them.






21. A process of mathematical conversion.






22. Area of the Earth that is displayed in each image






23. Geographic Coordinate System.






24. An assignment of geographic coordinates to locations.






25. Fixed entitites - Can only take a specific value (Ex. number of students in a class - anything that is counted and not measured)






26. The 4 types of ___________:SADD. 1. S - Shape: Conformal. 2. A - Area: Variant. 3. D - Direction: Preserved. 4. D - Distance: Variant.






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






28. 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






29. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






30. Smoothing & Shape abstraction.






31. Are made with GIS






32. Explanatory list of symbols on a map






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






34. Accuracy - reliability - responsibility.






35. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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






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






38. GIS is ________






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






40. Application Programming Interfaces (increases access like my maps on google).






41. Precision of a measurement with respect to time






42. Files in the DB can be linked or joined using the _______






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






44. The ability to link files together.






45. Where 2 lines/arcs intersect - an endpoint - or a point along a line.






46. Preserve Direction






47. User generated content (UGC). Volunteered geog. info (VGI). Professional vs amateur. Neogeography vs GIS.






48. Maps that show the absolute location of places and geographic features determined by a frame of reference - typically latitude and longitude






49. Connectivity: ___________. 3 elements 1. Nodes & vertices define the shape of the arc. 2. Arcs have a from-node (or starting node) & a to-node (or ending-node). 3. Arcs only join at nodes.






50. 2 ______: 1. Files/records. 2. Database/collection of files.