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






2. Representative fraction






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






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






5. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






6. Are made with GIS






7. 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.






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






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






10. Triangulated Irregular Network.






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






12. Provide information about a particular topic or theme.






13. Description by name: ex London






14. Assigning location information to text & discourse.






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






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






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






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






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






20. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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






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






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






24. LN 1. L - Level Surfaces. 2. N - NAVD88.






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






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






27. Explanatory list of symbols on a map






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






29. Geographic Coordinate System.






30. An assignment of geographic coordinates to locations.






31. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






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






34. Accuracy - reliability - responsibility.






35. A Complete frame






36. Deliver location / topographic information.






37. 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.






38. Arcs only ___ at Nodes






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






40. 80 % of all information contain _________






41. GIS is not a ______






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






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






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






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






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






47. A reference system (geographic coordinates)






48. Digital Elevation Model






49. 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






50. The ability to link files together.