Welcome to the Data Storage and Querying MCQs Page

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

Data Storage and Querying MCQs | Page 11 of 21

Explore more Topics under DBMS

01

DBMS Basics

02

Data Models

03

The Entity Relationship Approach

04

Relational Databases

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Relational Algebra

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Normalization

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Storage and File Structures

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Indexing and Hashing

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Transactions

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Concurrency Control

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Recovery System

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SQL

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Advanced SQL

17

SQL Queries,Constraints and Triggers

Q101.

Which of the following operations are associative

Natural joins

Theta joins

Both the mentioned

None of the mentioned

Discuss

Answer: (c).Both the mentioned

Q102.

Which of the following set operations is not commutative?

Union

Intersection

Set difference

None of the mentioned

Discuss

Answer: (c).Set difference

Q103.

State true or false: The projection operation does not distribute over the union operation

True

False

May be

Can't say

Discuss

Answer: (b).False

Q104.

If no rule can be derived from any combination of others then the set of rules is said to be ________

Primitive

Axiomatic

Minimal

Atomic

Discuss

Answer: (c).Minimal

Q105.

Theta join operations are

Commutative

Associative

Distributive under projection

All of the mentioned

Discuss

Answer: (d).All of the mentioned

Q106.

Which of the following operations is associative

Set union

Set intersection

Set difference

Theta join

Discuss

Answer: (d).Theta join

Q107.

Which of the following set operations does the selection operation distribute over?

Union

Intersection

Difference

All of the mentioned

Discuss

Answer: (d).All of the mentioned

Q108.

State true or false: Multiple equivalence rules can be used one after the other on a query

True

False

May be

Can't say

Discuss

Answer: (a).True

Q109.

Which of the following information does the database system catalog store?

Number of tuples

Number of blocks

Size of a tuple of a relation

All of the mentioned

Discuss

Answer: (d).All of the mentioned

Q110.

Most databases store the distribution of values for each attribute as a __________

Histogram

Pie chart

Line graph

None of the mentioned

Discuss

Answer: (a).Histogram

Page 11 of 21

Welcome to the Data Storage and Querying MCQs Page

Data Storage and Querying MCQs | Page 11 of 21

Explore more Topics under DBMS

DBMS Basics

Data Models

The Entity Relationship Approach

Relational Databases

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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