Chap 5 Flashcards
node
the beginning or end x-y pair of a line feature
vertex
(vertices) a point at which the segments of a line or polygon feature change direction
feature class
a set of similar objects with the same attributes stored together in a spatial data file
attributes
information about map features stored in columns of a table
Feature ID (FID)
a unique number assigned to every feature in a spatial data file and used for identification and tracking
object ID (OID)
unique number identifying a row in a table or a feature in a geodatabase feature class
multipart feature
a single feature composed of nontouching units, such as a single state feature composed of the seven Hawaiian islands
feature dataset
a set of feature classes in a geodatabase that share a common coordinate system and can participate in networks and topology
spaghetti model
a model that stores spatial features as a series of x-y coordinates and does not store topological relationships between features
topological model
a data model that stores spatial relationships between features in addition to their x-y coordinates
adjacency
a spatial condition that quantifies whether one feature touches another
connectivity
a property of linear features when they are connected to each other via junctions
overlap
a spatial condition that quantifies whether one feature covers all of part of another feature
intersection
the property of two features touching each other in whole or in part
zipped
refers to a set of files that have been compiled into a single file and compressed in order to make file transfers and downloads easier
event layer
a map layer of points created from a series of coordinate pairs in a table
event layer
a map layer of points created from a series of coordinate pairs in a table
merge (2)
1) to combine two or more map features into one feature
2) to combine two or more data layers into a single layer
append
a function that combines features from two different feature classes
dissolve
to combine features when they share the same value for an attribute
feature dataset
a set of feature classes in a geodatabase that share a common coordinate system and can participate in networks and topology
shapefile
the spatial data model developed for, and used by, ArcView 3 and later versions
dBase
a database program whose file format has been adopted for the shapefile data model and tables in ArcGIS
Interchange file
a file used to store a coverage for file transfer; has an extension of .e00
source data (2)
1) a spatial data file that provides the features for a map layer
2) the original information used to develop a spatial data set
path or pathname
a list of the folders that must be traversed to locate a particular file
absolute pathname
a file pathname that starts at the drive letter
relative pathname
path to a file that starts in the current folder
Environment settings
program-level or tool-level settings that affect how tools run or set characteristics of the output, such as cell size or coordinate system
1- connectivity
2- intersection
3- adjacency
4- overlap
a- the united states and mexico
b- an oil well to a pipeline
c- Pennington County in New Jersey
d- hunting ranges of two nearby mountain lions
1-b
2-d
3-a
4-c
1- credits
2- appropriate scale range
3- description
4- summary
5- tags
6- use limitation
a- describes who may use the data and for what purpose
b- suggests the scales at which the data are valid
c- brief information about the purpose of the data
d- a potentially expanded explanation of the contents and history of the dataset
e- words or phrases that help users search for the data in a data repository or clearinghouse
f- information recording where the data came from and who was responsible for it
1-f
2-b
3-d
4-c
5-e
6-a
1- feature classes
2- shapefiles
3- feature datasets
4- rasters
5- coverages
a- Contain pixels rather than points, lines, or polygons
b-Found inside a geodatabase and may contain only one type of geometry (points, lines, or polygons)
c- Spaghetti data model developed for the early version of ArcView, still in common use
d- Is the oldest format and is generally converted to a newer one for use
e- Found inside a geodatabase and may contain multiple datasets with points, lines, and polygons
1-b
2-c
3-e
4-a
5-d
On Windows computers, why should GIS data be stored on the main C:\ drive rather than the default user library folder or Desktop?
a- Because the software does not always work correctly when accessing data under the Library folders or on the Windows Desktop.
b- Because the Library folders and Windows Desktop permit spaces in filenames and the C:\ drive does not.
c- Because there is more room on the C:\ drive.
d- Because on a network, the Library folders can get mixed up between different users.
a- Because the software does not always work correctly when accessing data under the Library folders or on the windows Desktop
Which ONE of the following statements best describes the use of spaces in folder and file names in ArcGIS?
a- Using spaces in folder names in ArcGIS is permitted and encouraged.
b- Using spaces in folder names in ArcGIS is not permitted, but they can be used in map document names.
c- Using spaces in folder names in ArcGIS is permitted but strongly discouraged.
d- Using spaces in folder names in ArcGIS is permitted, and they can also be used in names of datasets.
c- using spaces in folder names in ArcGIS is permitted but strongly discouraged
A table of climate stations containing longitude and latitude values has a corresponding coordinate system that is _____________.
a- geographic
b- state plane
c- UTM
d- conic
a- geographic
The Environment settings are used to _____________.
a- modify the behavior and output of tool functions
b- manage the installation properties of ArcGIS Pro and ArcCatalog
c- control the color options available when displaying features
d- control the placement of menus and toolbars in the program window
a- modify the behavior and output of tool functions
You download a file with a .zip extension, but then cannot find it in the Catalog window in ArcGIS Pro. What do you need to do?
a- Download the file using a different browser.
b- Use the ArcCatalog program instead of the Catalog window in ArcGIS Pro.
c- Use a utility to extract the contents of the .zip file to a folder.
d- Download the file again because it did not transfer correctly.
c- use a utility to extract the contents of the .zip file to a folder
Which one of the following is NOT a characteristic of file geodatabases?
a- They can store up to 1 terabyte of information.
b- They are designed for large workgroups with many editors.
c- They can be accessed by different operating systems.
d- They are stored as GIS files in standard system folders.
b- they are designed for large workgroups with many editors
Which one of the following describes an advantage of shapefiles over geodatabases?
a- Shapefiles can be read by many different GIS programs and are now commonly used to share data.
b- Shapefiles offer automatic tracking and updating of geometry attributes such as polygon areas or line lengths.
c- Shapefiles can utilize topology rules for finding and fixing topology errors.
d- Shapefiles can incorporate subtypes and domains for advanced functionality.
a- shapefiles can be read by many different GIS programs and are now commonly used to share data
Feature classes in a feature dataset must ____________.
a- all have the same geometry type
b- all have the same coordinate system
c- all participate in a planar topology
d- all have the same prefix in the feature class name
b- all have the same coordinate system
Which one of the following is NOT a characteristic of personal geodatabases?
a- They are designed for use by individuals or small workgroups.
b- They are based on the Microsoft Access database engine.
c- The file size is limited to 2 GB.
d- They can be used by Mac, Linux, and Unix operating systems.
d- they can be used by Mac, Linux, and Unix operating systems
definition of the term “vertex”
a-stored x-y location; a group of them defines the shape of a line or polygon
b- a single array of values stored in a raster, which may store one array or many
c- the beginning and endpoint of a line feature
d- a square data element in a raster holding one value for the map
a- stored x-y location; a group of them defines the shape of a line or polygon
definition of the term “feature dataset”
a- a set of similar spatial objects with the same attributes stored together in a data file
b- a map view holding layers that are viewed and analyzed together
c- an organized subset of feature classes in a geodatabase
d- an Internet map layer in which the actual features are accessible
c- an organized subset of feature classes in a geodatabase
definition of the term “dissolve”
a- combines features together when they share the same value for an attribute
b- overlays two spatial data layers; keeps overlapping areas and discards unique areas
c- overlays two spatial data layers; keeps both overlapping and unique areas
d- combines one or more different feature classes into an existing feature class
a- combines features together when they share the same value for an attribute
definition of the term “merge”
a- overlays two spatial data layers; keeps overlapping areas and discards unique areas
b- combines two or more map features (or datasets) into one new feature (or dataset)
c- overlays two spatial data layers; keeps both overlapping and unique areas
d- combines features together when they share the same value for an attribute
b- combines two or more map features (or datasets) into one new feature (or dataset)
definition of the term “coverage”
a- an organized subset of feature classes in a geodatabase
b- a file that points to spatial data and stores how to display it
c- an old spatial data format created for, and used by, ArcInfo
d- format developed for ArcView that stores a feature class outside a geodatabase
c- an old spatial data format created for, and used by, ArcInfo
When importing data for your home state, the Clip tool would most likely be needed to extract ____________.
a-counties
b- zip codes
c- cities
d- rivers
d- rivers
Creating a formal citation in the Credits section of the metadata is a good idea because
a- it helps you find the dataset again if you need it.
b- it helps other users know where the data came from.
c- it is convenient when you need to cite the data on a map or in a report.
d- these are all good reasons to do it.
d- these are all good reasons to do it.
Which ONE of the following statements uses its terms correctly?
a- The layer file for that geology feature class stores the correct colors for each unit.
b- That feature class, containing geologic rock units for the Black Hills, has 5000 pixels.
c- That geodatabase contains 10 layers used to create a geologic map.
d- I changed the symbol properties of the feature class to show the correct colors for each geologic unit.
a- The layer file for that geology feature class stores that correct colors for each unit.
A red exclamation point next to a layer name indicates that _____________.
a- the layer is very important
b- the layer needs editing
c- the data for the layer can’t be found
d- the layer comes from a different folder than the map document
e- none of the responses listed
c- the data for the layer can’t be found
The path “..\mgisdata\usa\usdata\states” is an example of a(n) ___________ pathname.
a- relative
b- absolute
c- arbitrary
d- none of the responses listed
a- relative
A closed figure composed of x-y coordinate vertices is called a ____________.
a- polygon
b- feature class
c- node
d- line
e- point
a- polygon
The endpoint of a line is called a ____________.
a- node
b- vertex
c- point
d- cell
e- pixel
a- node
Select the example that best characterizes the term “multipart feature”.
a- A feature with multiple records and one polygon.
b- A feature with multiple pixels stored together.
c- A feature with multiple polygons in one record.
d- A feature that appears multiple times in different feature classes.
c- A feature with multiple polygons in one record.
