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 3 of 9

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Q21.

Calculations involving numbers are faster than those involving string.

True

False

May be True or False

Can't say

Discuss

Answer: (a).True

Q22.

To convert an int to string, the function is _________________

INET_ATON()

INET_NTOA()

INET_ITOS()

INET_STOI()

Discuss

Answer: (b).INET_NTOA()

Q23.

To convert a string to an int, the function is _________________

INET_ATON()

INET_NTOA()

INET_ITOS()

INET_STOI()

Discuss

Answer: (a).INET_ATON()

Q24.

To maintain performance of tables having variable length rows, which statement is used?

MAINTAIN TABLE

BALANCE TABLE

ADJUST TABLE

OPTIMIZE TABLE

Discuss

Answer: (d).OPTIMIZE TABLE

Q25.

Which of these columns are faster?

Variable length, Fixed length

same

variable length

fixed length

indeterminate

Discuss

Answer: (c).fixed length

Q26.

Which of these take more space?

Variable length columns, Fixed length columns

variable length

same

fixed length

indeterminate

Discuss

Answer: (c).fixed length

Q27.

To minimize disk I/O, which of these should be chosen?

CHAR, VARCHAR

CHAR

VARCHAR

CHAR & VARCHAR

Either CHAR or VARCHAR

Discuss

Answer: (b).VARCHAR

Q28.

Avoiding NULL in columns may make queries simpler.

True

False

May be True or False

Can't say

Discuss

Answer: (a).True

Q29.

Which of these can be used to generate hash values?

MS5()

MA5()

MF5()

MD5()

Discuss

Answer: (d).MD5()

Q30.

IP numbers can be represented as _________________

both integers and a string

a string but not integers

integers but not a string

neither a string nor integers

Discuss

Answer: (a).both integers and a string

Page 3 of 9

Welcome to the Query Optimization MCQs Page

Query Optimization MCQs | Page 3 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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