Welcome to the DBMS Basics MCQs Page

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

DBMS Basics MCQs | Page 11 of 38

Explore more Topics under DBMS

01

Data Models

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

Q101.

The generic two-level data warehouse architecture includes which of the following?

At least one data mart

Data that can extracted from numerous internal and external sources

Near real-time updates

Both b and c

Discuss

Answer: (d).Both b and c

Q102.

The active data warehouse architecture includes which of the following?

At least one data mart

Data that can extracted from numerous internal and external sources

Near real-time updates

All of the above.

Discuss

Answer: (d).All of the above.

Q103.

Reconciled data is which of the following?

Data stored in the various operational systems throughout the organization.

Current data intended to be the single source for all decision support systems.

Data stored in one operational system in the organization.

Data that has been selected and formatted for end-user support applications.

Discuss

Answer: (b).Current data intended to be the single source for all decision support systems.

Q104.

Transient data is which of the following?

Data in which changes to existing records cause the previous version of the records to be eliminated

Data in which changes to existing records do not cause the previous version of the records to be eliminated

Data that are never altered or deleted once they have been added

Data that are never deleted once they have been added

Discuss

Answer: (a).Data in which changes to existing records cause the previous version of the records to be eliminated

Q105.

The extract process is which of the following?

Capturing all of the data contained in various operational systems

Capturing a subset of the data contained in various operational systems

Capturing all of the data contained in various decision support systems

Capturing a subset of the data contained in various decision support systems

Discuss

Answer: (b).Capturing a subset of the data contained in various operational systems

Q106.

Data scrubbing is which of the following?

A process to reject data from the data warehouse and to create the necessary indexes

A process to load the data in the data warehouse and to create the necessary indexes

A process to upgrade the quality of data after it is moved into a data warehouse

A process to upgrade the quality of data before it is moved into a data warehouse

Discuss

Answer: (d).A process to upgrade the quality of data before it is moved into a data warehouse

Q107.

The load and index is which of the following?

A process to reject data from the data warehouse and to create the necessary indexes

A process to load the data in the data warehouse and to create the necessary indexes

A process to upgrade the quality of data after it is moved into a data warehouse

A process to upgrade the quality of data before it is moved into a data warehouse

Discuss

Answer: (b).A process to load the data in the data warehouse and to create the necessary indexes

Q108.

Data transformation includes which of the following?

A process to change data from a detailed level to a summary level

A process to change data from a summary level to a detailed level

Joining data from one source into various sources of data

Separating data from one source into various sources of data

Discuss

Answer: (a).A process to change data from a detailed level to a summary level

Q109.

A multifield transformation does which of the following?

Converts data from one field into multiple fields

Converts data from multiple fields into one field

Converts data from multiple fields into multiple fields

All of the above

Discuss

Answer: (d).All of the above

Q110.

A star schema has what type of relationship between a dimension and fact table?

Many-to-many

One-to-one

One-to-many

All of the above.

Discuss

Answer: (c).One-to-many

Page 11 of 38

Welcome to the DBMS Basics MCQs Page

DBMS Basics MCQs | Page 11 of 38

Explore more Topics under DBMS

Data Models

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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