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Relational Database Management System MCQs | DBMS Objective Type Interview Questions and Answers

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Database management system multiple choice interview questions and answers page contain 5 questions from chapter Relational DBMS. Each objective question has 4 possible answers. Choose your answer and check it with the given correct answer.
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(11) A primary key :
[A] is also referred to as a composite key
[B] is a unique identifier in a column
[C] uniquely identities the data in row
[D] must be accompanied by a corresponding foreign key

Comment

Answer: Option [B]
(12) Duplicate data is referred to as :
[A] accurate data
[B] redundant data
[C] storage data
[D] none of the above

Comment

Answer: Option [B]

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(13) A relation in third normal form is :
[A] in first normal form also
[B] second normal form also
[C] from transitive dependencies
[D] all of the above

Comment

Answer: Option [D]
(14) In a relational database a referential integrity constraint can be specified with the help of
[A] primary key
[B] foreign key
[C] secondary key
[D] none of the above

Comment

Answer: Option [B]
(15) In a relation
[A] Ordering of rows is immaterial
[B] No two rows are identical
[C] Both [A] and [B] are true
[D] None of the above

Comment

Answer: Option [C]

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

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