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Data Modeling with ER Model - Database MCQ Questions and answers- Technical Aptitude

Data Modeling with ER Model(Database) mcq questions and answers with easy and logical explanations for various competitive examination, interview and entrance test. Database Mcq question are important for technical exam and interview. Page-2 section-1

11
An attribute that names or identifies entity instances is a(n):
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Answer: Option C
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12
Properties that describe the characteristics of entities are called:
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Answer: Option B
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13
In which of the following can many entity instances of one type be related to many entity instances of another type?
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Answer: Option C
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14
Entities of a given type are grouped into a(n):
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Answer: Option B
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15
Which of the following is NOT a basic element of all versions of the E-R model?
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Answer: Option D
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16
In which of the following is a single-entity instance of one type of related to a single-entity instance of another type?
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Answer: Option A
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17
Entities can be associated with one another in which of the following?
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Answer: Option D
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18
Which type of entity has its relationship to another entity determined by an attribute in that other entity called a discriminator?
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Answer: Option B
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19
Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity?
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Answer: Option C
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20
In a one-to-many relationship, the entity that is on the many side of the relationship is called a(n) ________ entity.
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Answer: Option B
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