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. Accuracy - reliability - responsibility.






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






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






4. The nature of relationships & connectivity between them.






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






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






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






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






9. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






10. Precision of a measurement with respect to time






11. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






12. Deliver location / topographic information.






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






14. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






15. Assigning location information to text & discourse.






16. Arcs only ___ at Nodes






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






18. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






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






21. Triangulated Irregular Network.






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






23. A process of mathematical conversion.






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






25. Contour lines never _______






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






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






28. The 5 __________: TTCETH - 1. Triangle table 2. Triangle-Node table 3. Coordinate table 4. Triangle-Edge table 5. Hull-Edge table.






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






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






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






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






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






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






35. Provide information about a particular topic or theme.






36. GIS is ________






37. 80 % of all information contain _________






38. Lines that connect points of equal value.






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






40. Preserve Shape






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






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






43. A reference system (geographic coordinates)






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






45. Explanatory list of symbols on a map






46. Representative fraction






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






48. 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.






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






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