GIS Geodatabase Design and Management 2

Question 1

Which geodatabase element enforces that a polygon feature class cannot contain gaps or overlaps with adjacent polygons?

Accepted Answer

Topology rule

Answer

Topology rules in a geodatabase enforce spatial integrity constraints such as no gaps or overlaps between adjacent polygon features.

Question 2

What is the purpose of a 'replica' in an ArcGIS geodatabase workflow?

Accepted Answer

To synchronize data between a central geodatabase and distributed databases

Answer

Replicas enable bidirectional synchronization of data between a central (parent) geodatabase and remote (child) geodatabases for distributed editing.

Question 3

In a file geodatabase, what is the maximum size allowed for a single feature class or table by default?

Accepted Answer

1 TB

Answer

By default each dataset in a file geodatabase can grow to 1 TB, though this can be configured up to 256 TB for rasters.

Question 4

A geodatabase relationship class with 'Message Direction' set to 'Forward' means messages propagate from which class to which?

Accepted Answer

From origin to destination

Answer

Forward message direction sends notifications from the origin class to the destination class when origin features are modified.

Question 5

What distinguishes an 'annotation feature class' stored in a geodatabase from map labels?

Accepted Answer

Annotation features are stored as editable geometry with text attributes

Answer

Geodatabase annotation stores each text element as a persistent feature with position, size, and text properties that can be individually edited.

GIS - Geographic Information System Practice Test