Exam (elaborations)
GIS FINAL EXAM QUESTIONS AND ANSWERS | 100% VERIFIED
- Course
- Institution
GIS FINAL EXAM QUESTIONS AND ANSWERS | 100% VERIFIED
[Show more]
Content preview
GIS FINAL EXAM QUESTIONS ANDANSWERS | 100% VERIFIED
What does GIS stand for? CORRECT ANSWERS geographic info system
what are four components of a GIS CORRECT ANSWERS -people (most important)
-hardware
-spatial data
-software
what are four things a GIS does CORRECT ANSWERS -manipulate dta
-store data
-analyze data
-display data
what is a map CORRECT ANSWERS a cartographic representation of a geographic reality
raster and vector data CORRECT ANSWERS -equal area grid cells, requires more storage space
-points, lines, and polygons
topology CORRECT ANSWERS -what is next to what and what is connected to what
what is the purpose of having data base structures CORRECT ANSWERS to organize and find info
Hierarchical data base vs network data base structure CORRECT ANSWERS -1 to 1 parent child relationship
-1 parent to multiple children
what type of data base structure is most commonly used in a GIS? CORRECT ANSWERS relational
what is the main purpose of a map projection CORRECT ANSWERS -to show a 3D earth on a 2D surface
what type of map projections is used to project an entire globe, why is this type best? CORRECT ANSWERS cylindrical has the least amount of distortion
what is the most important factor when obtaining GIS data CORRECT ANSWERS the quality of the data
Run length compression technique CORRECT ANSWERS Y, x-x Map Scale Concept CORRECT ANSWERS the ratio between the distance between two
points on the map and the same on the ground, md/gd
small scale vs large scale CORRECT ANSWERS small scale contains little detail while large scale contains lots of detail and is zoomed in
coordinate transformation: definition/importance CORRECT ANSWERS registration
it is important because the data has to overlay
sources of GIS data CORRECT ANSWERS USDA
UNH
Forestry Service
NYC Urban Planning office
NASA
3 Ways to Physically Input GIS data CORRECT ANSWERS 1.full length encoding
2.scanning (most likely)
3. digitizing
what is a datum CORRECT ANSWERS a starting point to measure from
Two common US datums CORRECT ANSWERS NAD27
NAD 83
WGS84
3 Most Common Coordinate Systems CORRECT ANSWERS 1. Lat/Long
2.UTM
3.State Planer
You are interested in analyzing loon habitat in the great lakes region covering four different states. Which is the worst choice to use? CORRECT ANSWERS State Planer because it covers four different systems
Geodesy CORRECT ANSWERS science of measuring the shape of the earth
GIGO CORRECT ANSWERS garbage in, garbage out
Boolean Algebra CORRECT ANSWERS AND: areas they overlap
NOT: areas they don't overlap
Or: areas that they both cove
spatial scope CORRECT ANSWERS the area operated on by the spatial analysis
three spatial scopes CORRECT ANSWERS -neighborhood
-global
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller ElevatedExcellence. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79202 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now
