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Welcome to the RDBMS MCQs Page

Dive deep into the fascinating world of RDBMS with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of RDBMS, a crucial aspect of DBMS. In this section, you will encounter a diverse range of MCQs that cover various aspects of RDBMS, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within DBMS.

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Check out the MCQs below to embark on an enriching journey through RDBMS. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of DBMS.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of RDBMS. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

RDBMS MCQs | Page 5 of 8

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Q41.
State true or false: Functional dependencies are transitive

a.

True

b.

False

c.

May be

d.

Can't say

Discuss
Answer: (a).True
Q42.
If A→B, A→ C then which of the following is true?

a.

A→BC

b.

A→B

c.

A→C

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q43.
If B is an attribute and A→B, Then B is said to be ________ by a.

a.

Logically implied

b.

Functionally implied

c.

Logically determined

d.

Functionally determined

Discuss
Answer: (d).Functionally determined
Q44.
We say that a decomposition having the property F’+ = F+ is a __________ decomposition.

a.

Dependency losing

b.

Dependency preserving

c.

Lossless

d.

None of the mentioned

Discuss
Answer: (b).Dependency preserving
Q45.
A _________ Fc for F is a set of dependencies such that F logically implies all dependencies in Fc, and Fc logically implies all dependencies in F.

a.

Canonical cover

b.

Complete cover

c.

Canonical dependency

d.

Canonical clause

Discuss
Answer: (a).Canonical cover
Q46.
What does the BCNF decomposition algorithm do?

a.

States a method to decompose a relation satisfying BCNF

b.

States a method for joining two relations satisfying BCNF

c.

States a method to decompose a relational schema such that there are no multiple occurrences

d.

None of the mentioned

Discuss
Answer: (a).States a method to decompose a relation satisfying BCNF
Q47.
The 3NF decomposition algorithm is also called as _______

a.

3NF normal algorithm

b.

3NF synthesis algorithm

c.

3NF generator

d.

Functional dependence algorithm

Discuss
Answer: (b).3NF synthesis algorithm
Q48.
Which of the following is desirable in a database design with functional dependencies?

a.

BCNF

b.

Losslessness

c.

Dependency preservation

d.

All of the mentioned

Discuss
Answer: (a).BCNF
Q49.
Which of the following is not a process of generating a good relational schema?

a.

Converting ER diagrams to relational schema

b.

Decomposing the relational schema while satisfying functional dependencies

c.

Joining multiple relations together to form a single relation containing all the attributes

d.

A design of relations which is then tested and modified to satisfy given normal forms

Discuss
Answer: (c).Joining multiple relations together to form a single relation containing all the attributes
Q50.
What is unique role assumption?

a.

The attribute name has a unique meaning in the database

b.

The attributes are all unique

c.

No two tuples have even a single same value in a relation

d.

None of the mentioned

Discuss
Answer: (a).The attribute name has a unique meaning in the database
Page 5 of 8

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