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Entity Relationship Model MCQs | Database Management System Objective Questions and Answers

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Database management system multiple choice questions and answers page contain 5 questions from chapter Entity Relationship Model. Each objective question has 4 possible answers. Choose your answer and check it with the given correct answer.
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(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

Comment

Answer: Option [C]
(12) An association of several entities in an Entity-Relation model is called :
[A] Tuple
[B] Record
[C] Relationship
[D] Field

Comment

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

Comment

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

Comment

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

Comment

Answer: Option [C]

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DATABASE MANAGEMENT SYSTEM MULTIPLE CHOICE QUESTIONS & ANSWERS – E-BOOK

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