Database Systems MCQs – Practice Test 26 (Chapter 4)

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Database Design and ER Model MCQ – Practice Test 26 PDF Download

MCQ 126: The representation of the conceptual design is done through the model:

Structural model
Object based relationship model
Relational model
Entity-relationship model

MCQ 127: The entity-relationship (E-R) data model specifies:

Enterprise data
Enterprise requirements
Enterprise schema
Enterprise structure

MCQ 128: The UML diagram that shows the interaction between users and the system, is known as:

Activity diagram
E-R diagram
Use case diagram
Class diagram

MCQ 129: An attribute of an entity set is basically a function that maps the entity set into a:

Role
Relation
Participation
Domain

MCQ 130: In a relationship set the number of entities to which another entity can be associated, is expressed via:

Mapping cardinalities
Mapping ratios
Contextual design
Conceptual design

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