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Exam (elaborations)

GIS Exam Questions WITH COMPLETE SOLUTIONS

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GIS Exam Questions WITH COMPLETE SOLUTIONS

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GIS Exam Questions WITH
COMPLETE SOLUTIONS

Question 1. Which three critical map elements should always be included? - ANS ✔✔North
arrow, legend, scale bar



Question 2. The following picture show examples of _____ errors in vector data. (overshoot,
undershoot, dangling node) - ANS ✔✔topology



Question 3. Which of the following datasets is the most positively spatially autocorrelated? (a.
dispersed/uniform, b. semi-dispersed c. clustered) - ANS ✔✔C) positive occurs when many
similar values are located near each other



Question 4. In remote sensing what does the acronym NDVI stand for? - ANS ✔✔Normalised
Difference Vegetation Index



Question 5. What is the formula for calculating the NDVI? - ANS ✔✔NDVI = NIR-RED/NIR +Red
(values fall between -1 and 1)



Question 6. Suggest a research question that you could use the NDVI to help you answer. - ANS
✔✔How much healthy vegetation is left in NSW after the latest bushfires. Could be used to
determine potential 'at risk' areas for the rest of the fire season.



Question 7. Describe a specific example of how you can use GIS to track the impact of climatic
events over space and time. - ANS ✔✔Map of Australia if ice caps melts



Question 8. On a single graph sketch spectral signatures to represent deep water, a bare
agricultural field and mangrove vegetation. Including legend, axis labels and label spectral

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