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. Triangulated Irregular Network.






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






3. Provide information about a particular topic or theme.






4. Preserve Direction






5. GIS is ________






6. Lines that connect points of equal value.






7. HAL - H-Human nature. A-Arbitrary/socially constructed. L-Loss of info (hiding variance within a class or group).






8. Geographic Coordinate System.






9. Representative fraction






10. 1. E - Ellipsoid dimensions. 2. D - Datum origin. 3. A - Angular alignment.






11. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






12. Explanatory list of symbols on a map






13. Data Modelling - Turning entities into complex objects (geometry - quality).






14. Points taken at regular intervals from the cumulative distribution function (CDF) of a random variable.






15. Understand spatial relations between landmarks>shortcuts.






16. Sailors and pilots use these maps to navigate






17. 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.






18. Identify unique points - patterns or features in space.






19. Digital Elevation Model






20. A 3-D frame of reference (model of the earth) used to determine surface locations.






21. 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.






22. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






23. 2 ______: 1. Files/records. 2. Database/collection of files.






24. When parallels & meridians intersect at right angles.






25. Accuracy - reliability - responsibility.






26. Maps are restricted to a __________.






27. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






28. 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.






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






30. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






31. A reference system (geographic coordinates)






32. Points - Polygons - Lines






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






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






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






36. Global Positioning System.






37. Precision of a measurement with respect to time






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






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






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






41. A Complete frame






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






43. An assignment of geographic coordinates to locations.






44. Consists of F & E: 1. Features. 2. Entities.






45. The ability to link files together.






46. Contour lines never _______






47. Essentials of DBMS: Each record has a ________






48. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






49. Deliver location / topographic information.






50. 2 reasons why Topology matters: 1. Error detection. 2. ___________.







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