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. Explanatory list of symbols on a map






2. The ability to link files together.






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






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






5. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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






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






8. Digital Elevation Model






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






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






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






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






13. Precision of a measurement with respect to time






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






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






16. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






17. The nature of relationships & connectivity between them.






18. Google Maps or Microsoft Bing.






19. Blue - Green - Red - NIR....






20. 80 % of all information contain _________






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






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






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






24. 2 common _______: 1. Vector. 2. Raster.






25. Relative to another known feature






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






27. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






29. Description by name: ex London






30. 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






31. Are made with GIS






32. 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.






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






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






35. To avoid corrupt data!






36. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






37. Provide information about a particular topic or theme.






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






39. 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.






40. Arcs only ___ at Nodes






41. Deliver location / topographic information.






42. Accuracy - reliability - responsibility.






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






44. Preserve Direction






45. Smoothing & Shape abstraction.






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






47. Map in which some thematic mapping variable is substituted for area (like a graph in a map)






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






49. GIS is not a ______






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