Database Systems Competitive Exam MCQs – Practice Test 13 (Chapter 4)

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Free Database Design and ER Model MCQs App Download: Generalization in which the same entity can belong to more than one lower-level entity set within a single generalization, is known to be; MCQ with answers: overlapping constraint, disjointness constraint, completeness constraint, and concurrency constraint. Solve Query Optimization Techniques Quiz Questions, download Google e-Book (Free Chapter) to optimize online instruction.

Database Design and ER Model MCQs – Practice Test 13 PDF Download

MCQ 61: 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

MCQ 62: 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

MCQ 63: In an E-R diagram, double lines are an indication of participation type:

Total
Composite
Partial
Compound

MCQ 64: If both the relationship edges have a maximum value of 1, the relationship is said to be:

One-to-many
Many-to-one
Many-to-many
One-to-one

MCQ 65: A database designer serves a high-level data model by providing:

Contextual framework
Computational framework
Conceptual framework
Target framework

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