Welcome to the Query Optimization MCQs Page

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

Check out the MCQs below to embark on an enriching journey through Query Optimization. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of MySQL Database.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Query Optimization. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Query Optimization MCQs | Page 4 of 9

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Q31.

Bulk loading is less efficient than single row loading.

True

False

May be True or False

Can't say

Discuss

Answer: (b).False

Q32.

Loading is faster when a table has no indexes than when it is indexed.

True

False

May be True or False

Can't say

Discuss

Answer: (a).True

Q33.

Which is more efficient?

LOAD DATA, INSERT

LOAD DATA

INSERT

Same

Indeterminate

Discuss

Answer: (a).LOAD DATA

Q34.

Without LOCAL, LOAD DATA is _________________

more efficient

less efficient

same speed

arbitrary

Discuss

Answer: (a).more efficient

Q35.

Which option turns on the –extended-insert?

–opt

–opti

–op

–optimize

Discuss

Answer: (a).–opt

Q36.

Which table option for MyISAM tables reduces index flushing?

DELAY_KEY_WRITE

DELAY_WRITE_KEY

KEY_WRITE_DELAY

WRITE_KEY_DELAY

Discuss

Answer: (a).DELAY_KEY_WRITE

Q37.

Which option repairs MyISAM tables automatically after they open?

–myisam-recover=FORCE

–myisam-recover=STOP

–recover-myisam=FORCE

–recover-myisam=STOP

Discuss

Answer: (a).–myisam-recover=FORCE

Q38.

The option which delays index flushing for slave server is _________________

–delay-write-key=ALL

–delay-key-write=ALL

–key-write-delay=NONE

–key-delay-write=NONE

Discuss

Answer: (b).–delay-key-write=ALL

Q39.

TO enable the compressed client/server protocol the option is _________________

–enable

–compress

–reduce

–restrict

Discuss

Answer: (b).–compress

Q40.

To reactivate indexes the command used is _________________

DISABLE KEYS

DISABLE INDEXES

ENABLE KEYS

ENABLE INDEXES

Discuss

Answer: (c).ENABLE KEYS

Page 4 of 9

Welcome to the Query Optimization MCQs Page

Query Optimization MCQs | Page 4 of 9

Explore more Topics under MySQL Database

MySQL Basics

Managing Data using SQL

MySQL Data Types and Operators

Stored Programs

MySQL Programming

MySQL Administration

Access Control and Security

Database Maintenance and Backup

System and User Variables

MySQL Clauses

Miscellaneous Topics in MySQL

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