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






3. The reverse of each other.






4. Smoothing & Shape abstraction.






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






6. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






7. Description by name: ex London






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






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






10. The ability to link files together.






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






12. 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.






13. Lines that connect points of equal value.






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






15. Can not be made from other colors






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






17. Google Maps or Microsoft Bing.






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






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






20. Blue - Green - Red - NIR....






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






22. 2 common _______: 1. Vector. 2. Raster.






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






24. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






25. Are made with GIS






26. 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.






27. Relative to another known feature






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






29. Deliver location / topographic information.






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






31. Essentials of DBMS: Each record has a ________






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






33. GIS is ________






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






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






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






37. Geographic Coordinate System.






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






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






40. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






41. Sailors and pilots use these maps to navigate






42. Symbol on a map used to show direction






43. A process of mathematical conversion.






44. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






45. The nature of relationships & connectivity between them.






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






47. Arcs only ___ at Nodes






48. A reference system (geographic coordinates)






49. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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