Free MCQsLearn App Download - Entity Relationship Model Trivia Questions and Answers PDF Download eBook p. 179
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"A set of entities of the same type that share the same properties, or attributes, is known to be", entity relationship model Multiple Choice Questions (MCQ) with choices grouped entities, entity group, entity set, and sampled entities for online computer science degrees. Learn database design and er model questions and answers with free online certification courses for online computer science engineering.
Entity Relationship Model Questions and Answers PDF Download eBook
MCQ: A set of entities of the same type that share the same properties, or attributes, is known to be
- Entity group
- Grouped entities
- Entity set
- Sampled entities
C
MCQ: Buffering is done by
- Operating system
- Database system
- Disk controller
- Both A and B
D
MCQ: The generalization in which the same entity can belong to more than one lower-level entity set within a single generalization, is known to be
- Disjointness constraint
- Overlapping constraint
- Completeness constraint
- Concurrency constraint
B
MCQ: The specified role must have been granted to the user, else the set role statement
- Executed
- Accepts
- Passes
- Fails
D
MCQ: A data-loss in a disk block can be in result of
- Head crash
- Sector crash
- Failure in data-transfer
- Both A and C
D