Entity Relationship Model MCQs with Answers for Competitive Exams

Questions

11 Relations produced from an E-R model will always be in :

A First normal form

B Second normal form

C Third normal form

D Fourth normal form

Answer: Option [C]

12 An association of several entities in an Entity-Relation model is called :

A Tuple

B Record

C Relationship

D Field

Answer: Option [C]

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13 The attributes made up of more than one single attributes are called :

A Derived attribute

B Composite attribute

C Single value attribute

D Multi value attribute

Answer: Option [B]

14 Which of the following keys uniquely identifies the entity set ?

A Primary key

B Super key

C Candidate key

D None of these

Answer: Option [A]

15 In ER model the details of the entities are hidden from the user. This process is called :

A generalization

B specialization

C abstraction

D none of these above

Answer: Option [C]

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