Welcome to the Data Models MCQs Page

Dive deep into the fascinating world of Data Models with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Data Models, a crucial aspect of DBMS. In this section, you will encounter a diverse range of MCQs that cover various aspects of Data Models, 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.

Check out the MCQs below to embark on an enriching journey through Data Models. 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 Data Models. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Data Models MCQs | Page 5 of 19

Explore more Topics under DBMS

01

DBMS Basics

02

The Entity Relationship Approach

03

Relational Databases

04

Data Storage and Querying

05

Relational Algebra

06

Normalization

07

Storage and File Structures

08

Indexing and Hashing

09

Transactions

10

Concurrency Control

11

Recovery System

12

Distributed Databases

13

SQL

14

Data Warehousing and Data Mining

15

RDBMS

16

Advanced SQL

17

SQL Queries,Constraints and Triggers

Q41.

Data Models in DBMS are classified into ______ categories.

Discuss

Answer: (a).3

Q42.

Which of the following is example of Object based logical model ?

Entity Relationship Model

Hierarchical Model

Relational Model

Network Model

Discuss

Answer: (a).Entity Relationship Model

Q43.

Entity Relationship model consists of collection of basic objects called _________ and relationship among these objects.

functions

models

entities

None of these

Discuss

Answer: (c).entities

Q44.

Object which is distinguishable from other objects by specific set of attributes is called as ___________.

Classes

Entity

Attributes

None of these

Discuss

Answer: (b).Entity

Q45.

Association among several entities is called as _____________.

Extraction

Relationship

Combination

Association

Discuss

Answer: (b).Relationship

Q46.

______________ express the number of entities to which another entity can be associated via a relationship set.

Logical Cardinality

Mapping Cardinality

Messaging Cardinality

None of these

Discuss

Answer: (b).Mapping Cardinality

Q47.

In Object Oriented Model values are stored into __________ variables.

Instance

Local

Static

Global

Discuss

Answer: (a).Instance

Q48.

Collection of tables to represent both data and relationship is described by _____________.

Relational Model

Entity Relation Model

Network Model

Entity Model

Discuss

Answer: (a).Relational Model

Q49.

Ability to modify schema of database in one level without affecting the schema definition in higher level is called as __________.

Data Independence

Data Isolation

Data Migration

Data Abstraction

Discuss

Answer: (a).Data Independence

Q50.

There are _________ levels of data independence.

Discuss

Answer: (a).2

Page 5 of 19

Welcome to the Data Models MCQs Page

Data Models MCQs | Page 5 of 19

Explore more Topics under DBMS

DBMS Basics

The Entity Relationship Approach

Relational Databases

Data Storage and Querying

Relational Algebra

Normalization

Storage and File Structures

Indexing and Hashing

Transactions

Concurrency Control

Recovery System

Distributed Databases

SQL

Data Warehousing and Data Mining

RDBMS

Advanced SQL

SQL Queries,Constraints and Triggers

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