Final Exam Flashcards

(33 cards)

1
Q

What do attribute tables do?

A

Store data associated with a spatial feature class.

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2
Q

What do standalone tables do?

A

Store tabular data from any source.

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3
Q

What are some common sources of standalone tables?

A

Excel, text files, CSV files, and database files are all common sources.

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4
Q

When working with XY (point) data in ArcGIS, what does X represent?

A

Longitude

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5
Q

When working with XY (point) data in ArcGIS, what does Y represent?

A

Latitude

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6
Q

When naming fields in Excel for use in ArcGIS, you can only use what characters?

A

Letters, numbers, and the underscore.

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7
Q

When naming fields in Excel for use in ArcGIS, what does the field name have to start with?

A

A letter (not a number or an underscore).

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8
Q

What is a Boolean operator?

A

A logical operator used in a Boolean expression, such as AND, OR, NOT, or XOR.

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9
Q

What is NOT a Boolean operator?

A

Expressions like “at least”

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10
Q

What does the Boolean AND do?

A

Specifies a combination of conditions (a AND b = the intersection of those two things)

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11
Q

What does the Boolean OR do?

A

Specifies a list of alternative conditions (a OR b must be true = everything within those two)

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12
Q

What is select by location designed for?

A

Spatial data query

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13
Q

What is select by attribute designed for?

A

Attribute data query

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14
Q

What Boolean operator is used for the intersect tool?

A

AND

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15
Q

What Boolean operator is used for the union tool?

A

OR

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16
Q

What is the target layer in select by location queries?

A

The layer containing the features being selected.

17
Q

What is the source layer in select by location queries?

A

The layer containing the features being compared to.

18
Q

In an attribute table, what are the rows called?

19
Q

In an attribute table, what are the columns called?

20
Q

What is the target table in a join?

A

The table that receives the information.

21
Q

What is the rule of joining?

A

Each record in the target table must match one (and only one) record in the joining table. Therefore, only one-to-one and many-to-one joins will work.

22
Q

What are the three naming rules of creating fields?

A

The name must be no more than 64 characters long, follow ArcGIS rules (letters, numbers, and underscore), and start with a letter.

23
Q

In the attribute table what are the rows and columns called?

A

Records and fields.

24
Q

What do attribute queries test for?

A

Table values (such as “population > 400”)

25
What do spatial queries test for?
Spatial relationships (such as located within a state, or parcels in a flood plain)
26
What is an interactive query?
The user visually identifies and manually selects the desired features or records in an attribute table.
27
What are arithmetic operators?
+ - x ^ operators that act on numbers and their numeric values.
28
What are logical operators?
> < = operators that test conditions and return a true or false.
29
What are Boolean operators?
AND OR XOR NOT operators that test pairs of conditions and return a true or false.
30
What are spatial operators?
Operators that test spatial relationships such as proximity.
31
What programming language to attribute queries use?
Structured Query Language (SQL)
32
What are three basic operators that test spatial relationships?
Intersect, contains/within, and proximity
33
Which allows for a shared boundary if a feature is on the edge of a containing feature? Contains or completely contains?
Contains