ServiceNow Updated CAD Exam Questions and Answers by quinn

 Tables that extend a table inherit the parent’s fields. Extending a table means creating a child table that shares the same columns and business logic as the parent table. For example, the Incident table extends the Task table, which means that all fields defined on the Task table are also available on the Incident table. Extending a table allows for reusing existing fields and behaviors without duplicating them on multiple tables. Reference: Table extension and classes

"Schema map: Provides a graphical representation of the relationships between tables."

https://docs.servicenow.com/bundle/tokyo-platform-administration/page/administer/table-administration/concept/c_TableAdministration.html

In ServiceNow, when importing data from external sources, the platform utilizes Import Sets to stage the data before transforming it into target tables. The mechanism that defines how data from the Import Set fields map to the fields in an existing ServiceNow table is called a Transform Map.

Transform Map: A Transform Map is a set of field mappings that determine the relationships between fields in an Import Set and fields in an existing ServiceNow table. It allows administrators to define how data should be transformed and inserted into the target table.

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Business Service Management Map: This is not related to data import processes. It pertains to visual representations of business services and their dependencies.

Schema Map Relationship Builder: The Schema Map provides a graphical representation of tables and their relationships within the database schema but does not handle data import mappings.

Data Sources: Data Sources define the origin of the data being imported (e.g., files, JDBC connections) but do not determine the field mappings between Import Sets and target tables.