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






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






3. Connectivity: ___________. 3 elements 1. Nodes & vertices define the shape of the arc. 2. Arcs have a from-node (or starting node) & a to-node (or ending-node). 3. Arcs only join at nodes.






4. An assignment of geographic coordinates to locations.






5. Assigning location information to text & discourse.






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






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






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






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






10. 80 % of all information contain _________






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






12. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






13. Relative to another known feature






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






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






16. A reference system (geographic coordinates)






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






18. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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






20. Essentials of DBMS: Each record has a ________






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






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






23. Provide information about a particular topic or theme.






24. 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.






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






26. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






27. The ability to link files together.






28. Geographic Coordinate System.






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






30. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






31. Symbol on a map used to show direction






32. 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.






33. Preserve Direction






34. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






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






37. Can not be made from other colors






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






39. Are made with GIS






40. Blue - Green - Red - NIR....






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






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






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






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






45. Precision of a measurement with respect to time






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






47. A Complete frame






48. Accuracy - reliability - responsibility.






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






50. Explanatory list of symbols on a map