section 03 (quiz & script sheets & exercise videos)

Question 1

Is the following statement correct?

“There a two types of tables, but only one type is relevant for working with QGIS.”

(L3-1)

Answer 1

WRONG

Question 2

For every vector-dataset there is an attribute table, having an object-ID for every entry (point, line, polygon).
Make 3 statements about Attribute tables.

(L3-2)

Answer 2

Attribute tables …

• contain descriptive information about geographic features
• are automatically uploaded with the geo-data (shapefile etc)
• ARE DIRECTLY CONNECTED to the geographic features

Question 3

Is the following statement correct?

“There are not only attribute tables, but also factual data tables.”

(L3-3)

Answer 3

TRUE

Question 4

Is the following statement correct?

“A spacial relation can only be created with a link to attribute tables.”

(L3-3)

Answer 4

TRUE

Question 5

Is the following statement correct?

“Factual data tables are directly linked to geographical objects.”

(L3-3)

Answer 5

WRONG

Question 6

Is the following statement correct?

“Factual data tables are part of every vector data set.”

(L3-3)

Answer 6

WRONG

Question 7

Is the following statement correct?

“The calculation of ares by using ‘Calculate Geometry’ is dynamic.”

(L3-5)

Answer 7

WRONG

Question 8

While adding a field to an attribute table the type ‘double’ can be chosen.
What determines the field characteristic ‘precision’?

(L3-6)

Answer 8

The number of clauses, saved in the field

NOT the number of decimals or a procentual deviation

Question 9

You want to display ages of test persons in an attribute table.
Which data type do you use for the associated column?

(L3-7)

Answer 9

(Short) Integer

Question 10

Is the following statement correct?

“There are 4 kinds of relationships that can be represented with join&relate.”

(L3-8)

Answer 10

WRONG

Question 11

Additional descriptive data is generated when attributes of one table are added to another table.

Make 4 statements.

(L3-9)

Answer 11

Joins are based on a key-field that both tables have in common.

Changes of one table are automatically adopted.

Joins are saved in QGIS (or ArcMap).

No new table is generated.

Question 12

Is the following statement correct?

“Joins can link attribute tables to factual data tables or other attribute tables. They are often used when there is a clear correlation between the target table and the source table.”

(L3-10)

Answer 12

TRUE