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 nature of relationships & connectivity between them.






2. Are made with GIS






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






4. The reverse of each other.






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






6. The range of wavelengths sampled by a remote sensor.






7. Essentials of DBMS: Each record has a ________






8. Arcs only ___ at Nodes






9. Representative fraction






10. A Complete frame






11. GIS is not a ______






12. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






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






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






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






16. A process of mathematical conversion.






17. Lines that connect points of equal value.






18. 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.






19. 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.






20. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






21. Geographic Coordinate System.






22. Understand spatial relations between landmarks>shortcuts.






23. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






24. Regulary spaced sample of points representing a surface.






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






26. Maps are restricted to a __________.






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






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






29. Points - Polygons - Lines






30. A data classification method that divides a set of attribute values into groups that contain an equal range of values






31. Symbol on a map used to show direction






32. Google Maps or Microsoft Bing.






33. Accuracy - reliability - responsibility.






34. Title - legend or key - grid system - distance scale - direction and compass rose






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






36. Assigning location information to various media (photos - video - music).






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






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






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






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






41. Smoothing & Shape abstraction.






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






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






44. Provide information about a particular topic or theme.






45. People creating their own maps - on their own terms by combining elements of an existing toolset.






46. Explanatory list of symbols on a map






47. Digital Elevation Model






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






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






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