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Welcome to the Relational Databases MCQs Page

Dive deep into the fascinating world of Relational Databases with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Relational Databases, a crucial aspect of DBMS. In this section, you will encounter a diverse range of MCQs that cover various aspects of Relational Databases, 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 Relational Databases. 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 Relational Databases. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Relational Databases MCQs | Page 1 of 12

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Q1.
A Relation is a

a.

Subset of a Cartesian product of a list of attributes

b.

Subset of a Cartesian product of a list of domains

c.

Subset of a Cartesian product of a list of tuple

d.

Subset of a Cartesian product of a list of relations

Discuss
Answer: (b).Subset of a Cartesian product of a list of domains
Q2.
In mathematical term Table is referred as

a.

Relation

b.

Attribute

c.

Tuple

d.

Domain

Discuss
Answer: (a).Relation
Q3.
In mathematical term Row is referred as

a.

Relation

b.

Attribute

c.

Tuple

d.

Domain

Discuss
Answer: (c).Tuple
Q4.
_______ allow us to identify uniquely a tuple in the relation.

a.

Superkey

b.

Domain

c.

Attribute

d.

Schema

Discuss
Answer: (a).Superkey
Q5.
Minimal Superkeys are called

a.

Schema keys

b.

Candidate keys

c.

Domain keys

d.

Attribute keys

Discuss
Answer: (b).Candidate keys
Q6.
Who proposed the relational model?

a.

Bill Gates

b.

E.F. Codd

c.

Herman Hollerith

d.

Charles Babbage

Discuss
Answer: (b).E.F. Codd
Q7.
Data Manipulation Language (DML) is not to

a.

Create information table in the Database

b.

Insertion of new information into the Database

c.

Deletion of information in the Database

d.

Modification of information in the Database

Discuss
Answer: (a).Create information table in the Database
Q8.
Which of the following in true regarding Referential Integrity?

a.

Every primary-key value must match a primary-key value in an associated table

b.

Every primary-key value must match a foreign-key value in an associated table

c.

Every foreign-key value must match a primary-key value in an associated table

d.

Every foreign-key value must match a foreign-key value in an associated table

Discuss
Answer: (c).Every foreign-key value must match a primary-key value in an associated table
Q9.
How many types of keys in Database Design?

a.

Candidate key

b.

Primary key

c.

Foreign key

d.

All of these

Discuss
Answer: (d).All of these
Q10.
The minimal set of super key is called

a.

Primary key

b.

Secondary key

c.

Candidate key

d.

Foreign key

Discuss
Answer: (c).Candidate key
Page 1 of 12

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