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31) A field identified in a table as holding the

Question : 31) A field identified in a table as holding the : 1927945

31) A field identified in a table as holding the unique identifier of the table's records is called the:

A) primary key.

B) key field.

C) primary field.

D) foreign key.

32) A field identified in a record as holding the unique identifier for that record is called the:

A) primary key.

B) key field.

C) primary field.

D) foreign key.

33) A schematic of the entire database that describes the relationships in a database is called a(n):

A) data dictionary.

B) intersection relationship diagram.

C) entity-relationship diagram.

D) data definition diagram.

34) A one-to-one relationship between two entities is symbolized in a diagram by a line that ends:

A) in two short marks.

B) in one short mark.

C) with a crow's foot.

D) with a crow's foot topped by a short mark.

35) A one-to-many relationship between two entities is symbolized in a diagram by a line that ends:

A) in two short marks.

B) in one short mark.

C) with a crow's foot.

D) with a crow's foot preceded by a short mark.

36) A table that links two tables that have a many-to-many relationship is often called a(n):

A) derived table.

B) intersection relation.

C) foreign table.

D) entity-relationship table.

37) The process of streamlining data to minimize redundancy and awkward many-to-many relationships is called:

A) normalization.

B) data scrubbing.

C) data cleansing.

D) data administration.

38) A DBMS makes the:

A) physical database available for different logical views.

B) logical database available for different analytical views.

C) physical database available for different relational views.

D) relational database available for different physical views.

39) The logical view of a database:

A) shows how data are organized and structured on the storage media.

B) presents an entry screen to the user.

C) allows the creation of supplementary reports.

D) presents data as they would be perceived by end users.

40) Which of the following is not a typical feature of DBMS?

A) Data manipulation language

B) Report generation tools

C) Data dictionary

D) Query wizard tool

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