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Exam (elaborations)

DBMS Exam: Questions With Solutions (Rated A+)

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DBMS Exam: Questions With Solutions (Rated A+)

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DBMS Exam: Questions With Solutions (Rated A+)

The binary constraint MUST NOT indicates that ________. Right Ans - a
binary relationship includes value combinations that must not occur in a
ternary relationship

When transforming an ID-dependent E-R data model relationship into a
relational database design and the child entity is designed to use a surrogate
key, then ________. Right Ans - the relationship changes to a non-ID-
dependent relationship

In relational database design, ID-dependent entities are used to ________.
Right Ans - handle associative relationships

handle multivalued attributes

represent N:M relationships

handle archetype/instance relationships

Which of the following is not a step in the database design process? Right
Ans - Create constraints and triggers

The binary constraint MUST COVER indicates that ________. Right Ans - a
binary relationship includes a set of value combinations that must all occur in
a ternary relationship

The ideal primary key is ________. Right Ans - numeric

short

fixed

To represent a one-to-many relationship in a relational database design
________. Right Ans - the key of the parent is placed as a foreign key into the
child

The first step in transforming an extended E-R model into a relational
database design is to ________. Right Ans - create a table for each entity

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