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. 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






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






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






4. Are made with GIS






5. Geographic Coordinate System.






6. Explanatory list of symbols on a map






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






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






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






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






11. Lines that connect points of equal value.






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






13. 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.






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






15. Essentials of DBMS: Each record has a ________






16. Symbol on a map used to show direction






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






18. Deliver location / topographic information.






19. Can not be made from other colors






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






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






22. Smoothing & Shape abstraction.






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






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






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






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






27. A reference system (geographic coordinates)






28. 80 % of all information contain _________






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






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






31. Relative to another known feature






32. Description by name: ex London






33. Provide information about a particular topic or theme.






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






35. An assignment of geographic coordinates to locations.






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






37. GIS is not a ______






38. Blue - Green - Red - NIR....






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






40. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






41. The nature of relationships & connectivity between them.






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






43. Can assume all values between any two specific values. They are obtained by measuring.






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






45. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






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






47. The ability to link files together.






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






49. Precision of a measurement with respect to time






50. 2 common _______: 1. Vector. 2. Raster.