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. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






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






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






4. Google Maps or Microsoft Bing.






5. Global Positioning System.






6. Sailors and pilots use these maps to navigate






7. Arcs only ___ at Nodes






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






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






10. Provide information about a particular topic or theme.






11. 80 % of all information contain _________






12. The nature of relationships & connectivity between them.






13. Can not be made from other colors






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






15. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






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






17. The ability to link files together.






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






19. Geographic Coordinate System.






20. When parallels & meridians intersect at right angles.






21. Essentials of DBMS: Each record has a ________






22. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






23. The reverse of each other.






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






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






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






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






28. Preserve Direction






29. Blue - Green - Red - NIR....






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






31. Smoothing & Shape abstraction.






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






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






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






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






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






37. Understand spatial relations between landmarks>shortcuts.






38. A reference system (geographic coordinates)






39. A Complete frame






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






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






42. Relative to another known feature






43. Precision of a measurement with respect to time






44. Symbol on a map used to show direction






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






46. Representative fraction






47. Contour lines never _______






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






49. Accuracy - reliability - responsibility.






50. Regulary spaced sample of points representing a surface.