GIS FINAL QUIZ
When making a Choropleth map, use different shades of a single color to indicate:
Quantitative differences, or differences in intensity.
Land forms.
Ratio data and ordinal data
Data that has been normalized by area.
Qualitative differences, or differences of kind.
True/False?) Vector data model is good for representing continuous values, such as elevation, vegetation, precipitation, etc.
True
False
Which of the following terms refer to the approximate shape of the earth once its flattening is taken into account?
Sphere
Ellipsoid
Circle
None of these
Geoid
Which variable is appropriate to apply different hues (red, green, blue) showing qualitiative variation in a choropleth map?
Tree species by forest areas
Percent of households under poverty
Level of traffic congestion
Population density
Total population by county
Which one is NOT an advantage of dynamic labeling of GIS?
Change color of all labels
Change font size of all labels
Edit individual map label
Avoid conflicts of label position
Which variable is more appropriate for choropleth mapping?
Location of schools
Number of crimes in each neighborhood
Percent of population who are voter
Total energy consumption in each county
Total number of unemployed people
Simplified version of Geoid
None of the above
Both Spheroid and Ellipsoid
Ellipsoid
Spheroid
The basic building block for Raster data is...
Point
Cell
Line
Polygon
Which classification method produce classes with equal value range?
Geometric
Quantile
Natural Break
Equal Interval
Standard Deviation
Which one is NOT an important map element?
Title
Map Data Source
Map Scale
Legend
Locator Map
Which datatype will work better if you only need to store the whole numbers between -500 and 500 in a particular attribute field?
Short Integer
Single Precision Floating Point
Double Precision Floating Point
Long Integer
(True/False) A shapefile stores feature geometry, but not non-spatial tabular data.
True
False
Which map would display the most (i.e. larger) area of land? Select one:
1:24,000
1:2,000,000
1:50,000
1:60,336
1:4,000,000
Which one of the following is NOT true for Spaghetti data model?
Preserves information on adjacency, connectivity, and direction
Features may overlap with each other
Each entry is single, without information on connection to other features
Doesn’t maintain any logical relationship
Which one of the following is NOT a Vector data?
Features class
Triangular Irregular Network (TIN)
ArcINFO Coverage
Aerial Imagery
Shapefile
In which numerical data type your University Identification Number (UIN) at the University of Illinois should be saved?
Long Integer
Short Integer
Single Precision Floating Point
Double Precision Floating Point
You are creating a field which will save data ranging from -1,598,632.153 to 1,598,632.153 . What Precision and Scale should you specify for that?
Precision 10, Scale 3
Scale 10, Precision 3
Scale 11, Precision 3
Precision 11, Scale 3
Scale 12, Precision 3
What is NOT true for a relational database?
Based on multiple flat files
Connected by a common key attribute
Column sequence is significant
Only one value in each cell
Table join will NOT work, if:
Special character or space in the field name
Only one row at the top of the table, with field names
Spatial and tabular data from same geography
Extra columns (or fields) in the table not necessary for mapping
You have a map of all the restaurants in Champaign-Urbana and you are trying to find a Mexican restaurant which can accommodate a group of more than 20 people. What can be your query in GIS for that?
(Capacity>20) OR (Restaurant =”Mexican”)
{NOT(Capacity<=20) AND (Restaurant =”Mexican”)}
{NOT (Restaurant =”Mexican”) AND (Capacity<=20)}
(Restaurant =”Mexican”) OR (Capacity>=20)
(True/False) Raster data can store only one attribute
True
False
(True/False) Resampling function (on raster data) only assigns new values without changing cell size.
True
False
Shapefile Network Dataset…
Can solve only one type of traffic flow
Can be used for multimodal network
Can model connectivity to different modes
Can use connectivity groups
Can use multiple edge/line features
Which question can be answered by “Closest Facility” network analysis type?
Which is the quickest route from Illini Union to Education Building?
Which areas are within 5 minutes walking time from Krannert Center?
Which three computer labs in campus are within 10 minutes distance from main library?
Which is the shortest route to connect all department offices for campus mail service?
Which one is an advantage of using raster data?
Good for map cartography
Most GIS data are already in raster format
Can manage topological information more efficiently
Good for quick and easier spatial analysis
Creating a new raster layer by changing the values of the cells in a raster you already have is called:
Resampling
Reclassification
Interpolation
Slope anlaysis
Overlay analysis
Euclidean Allocation tool…
Measures straight-line distance from a cell to nearest point
Identifies closest input feature from each of the pixels
Measures straight-line distance between two input features
Assign same distance value within a buffer
Which is NOT true for a Transport Network Analysis?
Have few constraints on travel
Flow can be in both directions
Can have entry/exit at any point on the network
Uses Geometric dataset
Can easily model routes from anywhere to anywhere
Ameren Illinois is trying to find the best route to collect meter readings from all residential customers in Urbana. Which network analysis type should they use?
Service Area
Route
OD Cost Matrix
Vehicle Routing Problem
Location-Allocation
Which of the following cannot be stored in raster format?
Temperature
Rainfall totals
Elevation
Snowfall totals
All of the above
(True/False) Atmospheric condition cannot interfere with GPS signal transmission.
True
False
Which one is NOT a reason for maintaining spatial consistency while measuring changes in GIS?
You need data at certain level of geographic aggregation
Census boundaries have changed over time
Annexation can change city boundaries
Census definition of certain attributes (e.g. race, employment) may have changed
Spatial Interpolation is used for…
Predicting value of a point based on sample locations
Analyzing visibility of an area
Predicting intermediate values of two data irrespective of their location
Creating vector data
(True/False) LIDAR data is collected through an active system of remote sensing.
True
False
(True/False) Triangulated Irregular Network (TIN) is a raster based 3D GIS model.
True
False
(True/False) Differential Correction for GPS data requires a Base Station with known coordinate points.
True
False
Radiometric Resolution of satellite imagery refers to…
Sensitivity of sensor system
Frequency of collecting image from one place
Amount of area one cell in the satellite image represents
How finely it can divide the entire electromagnetic spectrum
What is referred to by “bands” in remote sensing?
Timing of satellite data collection
Resolution of an image
Specific segment of electromagnetic spectrum
Spatial extent of satellite data
For change detection using vector data, in which case even distribution of population can be assumed in the earlier period?
Areas with uneven development
At urban fringe without prior development
Already developed area in first period
Areas with high population growth
Which is NOT a recognized component of the GPS system?
User Segment
Point Segment
Control Segment
Satellite Segment
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