Deck 10: Data Exploration

Question 1

Which of the following graphic objects can be used for selecting map features?

A) both a circle and a rectangle
B) a circle
C) an irregular polygon
D) a rectangle
E) all of these are correct

Answer 1

all of these are correct

Question 2

Describe an example of using spatial aggregation for map-based data manipulation.

Answer 2

No Answer

Question 3

Which of the following is not a Boolean connector?

A) OR
B) AND
C) AT LEAST
D) XOR

Answer 3

AT LEAST

Question 4

Which spatial relationship would one use to find banks within a county?

A) containment
B) intersect
C) proximity/adjacency

Question 5

What are dynamic graphs?

Question 6

ArcGIS allows users to query an external database.

Question 7

Describe an example that involves both attribute data query and spatial data query.

Question 8

Define "data exploration."

Question 9

Select by Location in ArcMap is designed for:

A) spatial data query
B) both attribute data query and spatial data query
C) attribute data query

Question 10

Suppose you have two digital maps: one showing a school bus route and the other showing student locations. Describe a procedure you will follow to find how many students are within 5,000 feet of the bus route.

Question 11

Explain briefly the three main categories of spatial relationships available in the Select by Location dialog in ArcGIS.

Question 12

You have two digital maps of New York City: one showing landmarks, and the other showing restaurants. One attribute of the restaurant layer lists the type of food (e.g., Japanese, Italian, etc.). Suppose you want to find a Japanese restaurant within 2 miles of Time Square. Describe the steps you will follow to complete the task.

Question 13

The Los Angeles Police Department claims: "80% of minor crimes in the downtown area are within 2000 feet of bars." You are given two digital maps for the study area: one showing locations of minor crimes and the other showing downtown bars. What procedure will you follow to verify the claim?

Question 14

Using SQL, one will set up a query expression following the keyword_____:

A) From
B) Select
C) Where

Question 15

Describe an example, in which you can use the spatial relationship of Intersect for feature selection.

Question 16

The following table shows three fields of a land use layer with 10 polygons. The following questions relate to a series of queries in continuous sequence.
1) You set up the expression, lucode = 200, and click "Create a new selection." How many records are selected?
2) Next, you set up the expression, costha >= 15000, and click "Add to current selection." How many records are selected?
3) Next, you set up the expression, hectare > 2.0, and click "Select from current selection." How many records are selected?
4) Next, you click "Switch selection." How many records are selected?
5) Next, you set up the expression, lucode = 200 OR hectare > 10, and click "Create a new selection." How many records are selected?
6) Next, you set up the expression, lucode = 200 AND hectare > 2.0, and click "Create a new selection." How many records are selected?

Question 17

Define "geovisualization."

Question 18

ArcGIS offers the tools of Select by Location and Spatial Join. How does Spatial Join differ from Select by Location?

Question 19

Which Boolean connector is the keyword used in the Intersect operation?

A) AND
B) NOT
C) OR

Question 20

Which statement is true when one wants to perform queries using both spatial and attribute data?

A) None of these are correct.
B) One must perform spatial data query first.
C) One must perform attribute data query first.
D) One can perform query first with either spatial data or attribute data.

Question 21

Which of the following statements is true about data exploration in ArcGIS?

A) Maps, tables, and charts can be dynamically linked.
B) Only maps and tables can be dynamically linked.
C) None of these are correct
D) Only tables and charts can be dynamically linked.

Question 22

How does a spatial join operation differ from a join operation?

Question 23

An environmental protection agency has found 2 of its monitored wells with high nitrate readings. The agency needs to notify private well owners who live within 3 miles of the contaminated wells. You have been given two digital maps for the study area: one showing all monitored wells, and the other showing private wells. Explain how you can help the agency accomplish the task.

Question 24

Which of the following statements is true about raster data query?

A) All of these are correct
B) One can query a raster by cell value and by using points, circles, or polygons.
C) One can query a raster by using points, circles, or polygons.
D) One can query a raster by cell value.
E) One can query two or more rasters at a time.

Question 25

Which spatial relationship would one use to find land parcels that are on an earthquake fault line?

A) containment
B) proximity/adjacency
C) intersect

Question 26

Explain "feature selection by spatial relationship" for spatial data query.

Question 27

Different versions of SQL are used in ArcGIS.

Question 28

Which of the following is true about relational database query?

A) Relational database queries rely on keys that connect tables.
B) One may query tables that are connected by either join or relate.
C) One can work with two or more tables and Relational database queries rely on keys that connect tables.
D) One can work with two or more tables.
E) All of these are correct

Question 29

In raster data query, rasters, not fields, are used in the operand.

Question 30

In what ways does data exploration in a GIS differ from statistical data exploration?

Question 31

How many variables can be displayed in a bubble plot?

A) 4
B) 3
C) 1
D) 2