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. Description by name: ex London






2. Maps are restricted to a __________.






3. Maps that show the absolute location of places and geographic features determined by a frame of reference - typically latitude and longitude






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






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






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






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






8. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






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






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






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






12. The ability to link files together.






13. Global Positioning System.






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






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






16. Relative to another known feature






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






18. Essentials of DBMS: Each record has a ________






19. 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






20. Lines that connect points of equal value.






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






22. Accuracy - reliability - responsibility.






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






24. Smoothing & Shape abstraction.






25. Arcs only ___ at Nodes






26. Sailors and pilots use these maps to navigate






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






28. 2 ______: 1. Files/records. 2. Database/collection of files.






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






30. Preserve Shape






31. Provide information about a particular topic or theme.






32. Google Maps or Microsoft Bing.






33. 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.






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






35. 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.






36. Can not be made from other colors






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






38. The reverse of each other.






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






40. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






41. Understand spatial relations between landmarks>shortcuts.






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






43. When parallels & meridians intersect at right angles.






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






45. Are made with GIS






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






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






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






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






50. An assignment of geographic coordinates to locations.