Summary Exam notes GGH 3703 MCQ

Possible Multi-choice Questions for GGH3703 2023

 A shapefile consists of at least the following
dbf, prj, qpj, shp, shx

 State the two spatial data models usually used to represent real- world features in a GIS
Raster and Vector data models

 Query by attribute , query by location data classification
The data model for tourist attraction feature
Vector

 What is used to create a zone of a specified width around points, lines and polygons
Buffer

 Indicate which of the following statement apply to vector data models
They have topology that is used for topological analysis

 The indicated features need to be digitized on a scale 1:20 000
Indicate the dimensionality for each of the features if you capture the data for use in a
VECTOR GIS.

Open field- Polygon
Coastline- Line
Roads -Line
Houses - Point
Dense vegetation -Polygon

 State which spatial data model will be the most appropriate means to represent the
following real-world features in a GIS
Temperature :
Raster and vector models

 Match the steps of the GIS inquiry process with correct action
Step 1 DEFINE PROBLEM
Step 2 IDENTIFY THE DATA SETS
Step 3 BUILD THE GIS MODEL
Step 4 ACCUIRE THE DATA SETS
Step 5 ANALYZE THE DATA
Step 6 COMMUNICATE THE RESULTS

 From the options below identify the properties of spatial big data
Volume, velocity, variety

, What is the dimensionality of the nature surface nature reserve layer
Dimensionality of the Parks Project spatial data layer
Polygon

 What is the dimensionality of the artificial surface layer
LINE

 Spatial data are
Data with a location on earth

 Most powerful multiple layer layer analysis method used in a GIS to analysis data is
Overlayers

 The data model for the tourist attraction feature is
Vector

 What is the dimensionality of the railway layer
LINE

 When you have a map indicating boundaries or an outline of a feature and do not need the
data to be accurate we usally
Digitize the feature

 State the level of measurement that will be used for the following statistical data
Descriptive Qualitative data
Nominal

 What is the measurement scale for the road type field in the road attribute table
Norminal

 Errors are mistakes in your datasets errors and are the results of _ and _
Inaccuracies and data imprecision

 From options below identify the properties of spatial big data
Volume velocity and variety



 You need the centre lines of rivers that run through a farm. The data does not need to
accurate. Which data source will provide the most appropriate data set for use in GIS
topographical map

 Select two vector analysis methods that you will apply if you want to create a map to
indicate the primary schools located in the city of Tshwane. All data given to you are in
Vector format
Selected by Geography and Attributes

,  Indicate two raster analysis methods that you will apply if you want to create a map to
indicate the aspect of the Magaliesberg mountain range in North West province.
Aspect
Reclassification

 Spatial data is
Data with a location on earth

 Select is used for
Create an output layer based on a user-defined query that selects certain features from the
input layer


 This picture indicates _ buffer




Doughnut buffer



 Spatial relationships are applied to spatial data when doing vector overlays
POINT on Polygon
LINE on Polygon
POLYGON on Polygon

 State which spatial data model will be the most appropriate means to represent the
following real-world feature in a GIS
The data model for the road feature is
VECTOR

 The data model for the river line feature is
Data model for tourist attraction
VECTOR

 Data model for the image_modify is
Raster

 To determine the areas visible from a user defined point, you will do _ Analysis
Viewshed analysis

 What will categorize numerical data in equally sized classes
Equal interval