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. Provide information about a particular topic or theme.






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






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






4. 2 common _______: 1. Vector. 2. Raster.






5. Essentials of DBMS: Each record has a ________






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






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






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






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






10. To avoid corrupt data!






11. Assigning location information to text & discourse.






12. Maps are restricted to a __________.






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






14. The reverse of each other.






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






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






17. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






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






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






20. The nature of relationships & connectivity between them.






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






22. Google Maps or Microsoft Bing.






23. Most popular form of USGS Map

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






25. Points - Polygons - Lines






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






27. GIS is not a ______






28. Are made with GIS






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






30. Explanatory list of symbols on a map






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






32. Relative to another known feature






33. 80 % of all information contain _________






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






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






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






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






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






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






40. Lines that connect points of equal value.






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






42. Can not be made from other colors






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






44. The ability to link files together.






45. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






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






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






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






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