Advanced GIS Midterm Exam ESRI Training Review
2024 - Questions With Tailored Solutions
When you determine if there is a pattern of variation in your data, which
exploratory tool should you use? Right Ans - Trend Analysis
If it is -10 degrees Fahrenheit in Rome and 80 degrees Fahrenheit in
Stockholm in March, these values would be candidates for which data
property? Right Ans - Outlier
When you explore local variation and stationarity in your data, which
exploratory tool should you use? Right Ans - Voronoi Map
Exploring the spatial distribution of your data answers which question?
Right Ans - What is the geographic location of your data?
Exploring the spatial autocorrelation and variation in your data answers
which question? Right Ans - How is the value of the data related to its
location?
When you explore spatial autocorrelation in your data, which exploratory tool
should you use? Right Ans - Semivariogram/Covariance cloud
Which spatial statistics tool allows you to explore the general orientation of
your spatial data? Right Ans - Directional Distribution
A spline surface does not pass through each sample point. Right Ans - False
When you are creating a surface of precipitation based on rainfall amounts
collected from sample points, which method will NOT result in negative
precipitation amounts? Right Ans - Inverse Distance Weighted (IDW)
When should you use the IDW interpolation method? Right Ans - When you
want to interpolate phenomena whose distribution is strongly correlated with
distance
All of the following phenomena can be modeled using interpolation, except
one. Which one?
, A. Elevation
B. Precipitation
C. Soil Type
D. Air Pollution Right Ans -
What is the chief drawback of IDW? Right Ans - It models spatial
autocorrelation with a particular function, regardless of the particular
properties of the surface being estimated.
When should the spline interpolation method be used instead of the IDW
method? Right Ans - When you want to estimate values that are below the
minimum or above the maximum values found in the sample data
In a derived raster, which cells are the least reliable? Right Ans - Corner
Cells
Which are characteristics of the spline interpolation method? (Choose three.)
a. It produces a surface that flattens peaks and valleys.
b. It estimates values using averages.
c. It has two types: regularized and tension.
d. It creates a surface that preserves the z-value at each sample location.
e. It estimates lows and highs where they are not included in the sample data.
Right Ans - C, D, and E
Which is a way to create a smoother IDW interpolated surface? Right Ans -
Decrease the power
A splined surface may not exceed the highest and lowest values in the sample
point set. Right Ans - False
Which surface types, when combined, produce a shaded relief effect? (Choose
two.) Right Ans - Elevation and Hillside
The brightness values of cells along the edge of a hillshade raster are less
reliable than interior cells. Right Ans - True
Your source elevation surface has the following characteristics:
Horizontal units: feet
Horizontal resolution: 10
2024 - Questions With Tailored Solutions
When you determine if there is a pattern of variation in your data, which
exploratory tool should you use? Right Ans - Trend Analysis
If it is -10 degrees Fahrenheit in Rome and 80 degrees Fahrenheit in
Stockholm in March, these values would be candidates for which data
property? Right Ans - Outlier
When you explore local variation and stationarity in your data, which
exploratory tool should you use? Right Ans - Voronoi Map
Exploring the spatial distribution of your data answers which question?
Right Ans - What is the geographic location of your data?
Exploring the spatial autocorrelation and variation in your data answers
which question? Right Ans - How is the value of the data related to its
location?
When you explore spatial autocorrelation in your data, which exploratory tool
should you use? Right Ans - Semivariogram/Covariance cloud
Which spatial statistics tool allows you to explore the general orientation of
your spatial data? Right Ans - Directional Distribution
A spline surface does not pass through each sample point. Right Ans - False
When you are creating a surface of precipitation based on rainfall amounts
collected from sample points, which method will NOT result in negative
precipitation amounts? Right Ans - Inverse Distance Weighted (IDW)
When should you use the IDW interpolation method? Right Ans - When you
want to interpolate phenomena whose distribution is strongly correlated with
distance
All of the following phenomena can be modeled using interpolation, except
one. Which one?
, A. Elevation
B. Precipitation
C. Soil Type
D. Air Pollution Right Ans -
What is the chief drawback of IDW? Right Ans - It models spatial
autocorrelation with a particular function, regardless of the particular
properties of the surface being estimated.
When should the spline interpolation method be used instead of the IDW
method? Right Ans - When you want to estimate values that are below the
minimum or above the maximum values found in the sample data
In a derived raster, which cells are the least reliable? Right Ans - Corner
Cells
Which are characteristics of the spline interpolation method? (Choose three.)
a. It produces a surface that flattens peaks and valleys.
b. It estimates values using averages.
c. It has two types: regularized and tension.
d. It creates a surface that preserves the z-value at each sample location.
e. It estimates lows and highs where they are not included in the sample data.
Right Ans - C, D, and E
Which is a way to create a smoother IDW interpolated surface? Right Ans -
Decrease the power
A splined surface may not exceed the highest and lowest values in the sample
point set. Right Ans - False
Which surface types, when combined, produce a shaded relief effect? (Choose
two.) Right Ans - Elevation and Hillside
The brightness values of cells along the edge of a hillshade raster are less
reliable than interior cells. Right Ans - True
Your source elevation surface has the following characteristics:
Horizontal units: feet
Horizontal resolution: 10
