What is spatial interpolation?
► 1. The process of establishing values for areas outside the boundary of
an existing set of data points.
► 2. The process of modelling spatial pattern from a set of one or more data
layers
► 3. The process of establishing values for areas between an existing set
of discrete observations
► 4. The process of establishing a statistical relationship between two spatially
correlated variables
The process of establishing values for areas between an existing set of discrete
observations.
Which of the following are considered the main problems facing overlay operations
in GIS?
► 1. Selecting threshold criteria
► 2. Topological inconsistencies
► 3. The Modifiable Arial Unit Problem (MAUP)
► 4. Processing overheads
► 5. Visual complexity
Selecting threshold criteria
The Modifiable Arial Unit Problem (MAUP)
Visual complexity
Assuming a pair of binary raster data layers, which of the following could be used
as the equivalent of a Boolean AND overlay in cartographic modelling?
► 1. Layer 1 – layer 2
► 2. Layer 1 + layer 2
► 3. Layer 1 / layer 2
► 4. Layer 1 * layer 2
Layer 1 – layer 2
Layer 1 + layer 2
Layer 1 * layer 2
What is pointinpolygon overlay?
► 1. A method interpolating point data
► 2. An overlay method used to determine which points lay within the boundary
of a polygon
► 3. An overlay method used to determine the distance between a point and
it is nearest neighboring polygon
► 4. An overlay method used to reclassify polygon data
An overlay method used to determine which points lay within the boundary of a polygon
Which of the following overlay methods would you use to calculate the length of
road within a forest polygon?
► 1. Erase
► 2. Union
► 3. Lineinpolygon
► 4. Pointinpolygon
Lineinpolygon
Which of the following could you use a buffer operation?
► 1. Calculating the distance from one point to another
► 2. Calculating the area of overlap between two polygon data layers
► 3. Determining the area within a set distance from a point, line or area
feature
► 4. Calculating the number of observations within a set distance of a point,
line or area feature
Determining the area within a set distance from a point, line or area feature
Calculating the number of observations within a set distance of a point, line or
area feature
What is reclassification?
► 1. The process of combining one or more data ranges into a new data range
to create a new data layer.
► 2. The process of combing two or more data layers
► 3. The process of simplifying data in a data layer
► 4. An analytical technique based on point data.
The process of combining one or more data ranges into a new data range to create
a new data layer.
What is Manhattan distance?
► 1. The distance between two points in a raster data layer calculated as
the number of cells crossed by a straight line between them.
► 2. The distance between two points in a vector data layer calculated as
the length of the line between them.
► 3. The distance between two points in a raster data layer calculated as
the sum of the cell sides intersected by a straight line between them.
The distance between two points in a raster data layer calculated as the sum of
the cell sides intersected by a straight line between them.
Which of the following spatial interpolation techniques is an example of a local,
exact, abrupt, and deterministic interpolator?
► 1. Thiessen polygons
► 2. TIN
► 3. Spatial moving average
Thiessen polygons
What is the difference between slope and aspect?
► 1. Slope is the gradient directly down the fall line, while aspect is the
direction of the fall line relative to north.
► 2. Slope is the direction of the fall line, while aspect is the gradient
of the fall line.
► 3. Slope is the distance down the fall line from the top of the slope to
its bottom, while aspect is the percentage gradient of this line averaged over its
full distance.
► 4. Slope is the gradient of the fall line relative to vertical, while aspect
is the direction of the fall line relative to the line of greatest slope.
Slope is the gradient directly down the fall line, while aspect is the direction
of the fall line relative to north.
What is locationallocation modelling?
► 1. A method of site location based on overlaying multiple siting criteria
maps.
► 2. A method of allocating resources within an area of interest using buffer
analyses
► 3. A method of matching supply with demand across a network by locating
a limited set of resources using network analysis
► 4. A method within network analysis used to determine delivery routes
A method of matching supply with demand across a network by locating a limited set
of resources using network analysis
What is the possible number of combinations in which a delivery van can visit five
different points on a network?
► 1. 25
► 2. 120
► 3. 10
► 4. 3125
120
For the Happy Valley ski resort example, which GIS analyses could be used to determine
which hotels are within 200m of a main road.
► 1. Union overlay and lineinpolygon overlay
► 2. Buffer analysis and erase overlay
► 3. Buffer and pointinpolygon overlay
► 4. Intersect overlay and buffer analysis
► 5. Proximity analysis and reclassification
Proximity analysis and reclassification
Buffer and pointinpolygon overlay
A buffer zone around a point feature will be a circle.
► 1. True
► 2. False
True
Filtering is used on raster data to change the value of a cell based on the attributes
of neighboring cells.
► 1. True
► 2. False
True
Filtering could be used to smooth noisy data caused by problems with data collection
devices.
► 1. True
► 2. False
True
The Jordan method used for point in polygon analysis is also known as the Intersect
method.
► 1. True
► 2. False
False
It is an ecological fallacy to assume that all the individuals within a defined
area have the same level of income.
► 1. True
► 2. False
True
Exact interpolation methods are so called because they give very accurate results.
► 1. True
► 2. False
False
The
most common use of Theissen s Polygons is to create contour lines.
► 1. True
► 2. False
False
Slope can be calculated from the formula S = b2  c2.
► 1. True
► 2. False
False
Ray tracing is a technique used in network analysis.
► 1. True
► 2. False
False
ZVI is the abbreviation for Zone of Varying Intensity.
► 1. True
► 2. False
False
