Database Management System MCQs - Chapter 1
Data Modeling: Entity Relationship Model Trivia Questions & Answers PDF Download - 12
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Data Modeling Entity Relationship Model Test Questions and Answers PDF Download: MCQ 12
The kind of entities without any key attributes are classified as
- weak entity
- strong entity
- single entity
- foreign entity
The most popular high level conceptual model in database management system is
- close end relation model
- query relation model
- entity relationship model
- attribute relationship model
The maximum number of instances that can participate into the binary relationship is classified as
- floating ratio
- cardinality ratio
- intensive ratio
- extensive ratio
In entity-relationship diagrams, the types of relationships among entities are represented by
- squared box
- diamond shaped box
- oval shaped box
- rectangular box
If in database of employees, the Age attribute is derived attribute then date of birth is classified as
- logical attribute
- physical attribute
- conceptual attribute
- stored attribute
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