adplus-dvertising

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.

frame-decoration

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 13 of 21

Explore more Topics under DBMS

Q121.
A particular sort order is said to be _________ sort order if it could be useful for a later operation.

a.

Interesting

b.

Reusable

c.

Efficient

d.

Good

Discuss
Answer: (a).Interesting
Q122.
The rule that allows transformation of a logical operation to a physical operation is called

a.

Logical equivalence rule

b.

Physical equivalence rule

c.

Memory equivalence rule

d.

None of the mentioned

Discuss
Answer: (b).Physical equivalence rule
Q123.
State true or false: Making multiple copies of the same sub-expressions must be avoided

a.

True

b.

False

c.

May be

d.

Can't say

Discuss
Answer: (a).True
Q124.
Optimizers use __________ to reduce the cost of optimization.

a.

Analyzers

b.

Statistics

c.

Heuristics

d.

Caches

Discuss
Answer: (c).Heuristics
Q125.
The join orders where the right operand of each join is in one of the initial relations are called as ________

a.

Right deep join orders

b.

Left deep join orders

c.

Outer join orders

d.

None of the mentioned

Discuss
Answer: (b).Left deep join orders
Q126.
Caching and reuse of query plans is called as ________

a.

Query caching

b.

Plan caching

c.

Plan memorizing

d.

None of the mentioned

Discuss
Answer: (b).Plan caching
Q127.
What technique is used for the evaluation of a query with a nested sub query?

a.

Caching

b.

Decorrelated evaluation

c.

Correlated evaluation

d.

Time based evaluation

Discuss
Answer: (c).Correlated evaluation
Q128.
The process of replacing a nested query with a query with a join is known as _________

a.

Correlation

b.

Decorrelation

c.

Cache handling

d.

Join replacement

Discuss
Answer: (b).Decorrelation
Q129.
A view whose contents are computed and stored is called as _______

a.

Storage view

b.

Backup view

c.

Materialized view

d.

Advanced view

Discuss
Answer: (c).Materialized view
Q130.
The task of keeping a view up to date with the underlying data is called as ________

a.

View handling

b.

View maintenance

c.

View management

d.

None of the mentioned

Discuss
Answer: (b).View maintenance
Page 13 of 21

Suggested Topics

Are you eager to expand your knowledge beyond DBMS? We've curated a selection of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of Computer Science. Happy exploring!

MATLAB

Hone your computational mathematics skills with our MATLAB MCQs. Understand...

Digital Logic Design

Understand the foundation of digital computers with our Digital Logic Design MCQs....

Object Oriented Programming

Enhance your coding skills with our Object Oriented Programming MCQs. Understand...

JavaScript

Strengthen your web development skills with our JavaScript MCQs. Understand core...

Microprocessor

Understand the heart of your computer with our Microprocessor MCQs. Topics include...

Cloud Computing

Stay on top of the biggest trend in IT with our Cloud Computing MCQs. These questions...

Cryptography and Network Security

Secure your knowledge of information security with our Cryptography and Network...

Python

Dive into one of the most popular languages with our Python MCQs. Understand...

Formal Languages and Automata Theory

Discover the mathematical models of computation with our Formal Languages and...