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Welcome to the MySQL Administration MCQs Page

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

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Check out the MCQs below to embark on an enriching journey through MySQL Administration. 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 MySQL Administration. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

MySQL Administration MCQs | Page 11 of 18

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Q101.
Usage of aggregates in WHERE clause is disallowed.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q102.
The operators used when a subquery returns multiple rows to be evaluated in comparison to the outer query are _____________

a.

IN and NOT IN

b.

EXISTS and NOT EXISTS

c.

OUTER JOIN and INNER JOIN

d.

LEFT JOIN and RIGHT JOIN

Discuss
Answer: (a).IN and NOT IN
Q103.
The ALL subquery performs the operation _____________

a.

row

b.

column

c.

table

d.

database

Discuss
Answer: (b).column
Q104.
The following MySQL statement is valid. 
SELECT abc, xyz FROM table1 UNION abc, def FROM table2;

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q105.
The keyword used with UNION that does not retain duplicate rows is _____________

a.

ALL

b.

NARROW

c.

STRICT

d.

DISTINCT

Discuss
Answer: (d).DISTINCT
Q106.
The keyword used with UNION that retains duplicate rows is ______________

a.

ALL

b.

NARROW

c.

STRICT

d.

DISTINCT

Discuss
Answer: (a).ALL
Q107.
The log that contains a record of server startups and shutdowns and the messages about exceptional conditions is ______________

a.

error log

b.

general query

c.

slow query log

d.

binary log

Discuss
Answer: (a).error log
Q108.
The log that identifies statements that may be in need of being rewritten for better performance is ______________

a.

error log

b.

general query

c.

slow query log

d.

binary log

Discuss
Answer: (c).slow query log
Q109.
The default value in seconds in the system variable ‘long_query_time’ is ______________

a.

5

b.

10

c.

20

d.

60

Discuss
Answer: (b).10
Q110.
The logging option to enable binary log index file is ______________

a.

–log-bin-index

b.

–bin-log-index

c.

–index-log-bin

d.

–index-bin-log

Discuss
Answer: (a).–log-bin-index
Page 11 of 18

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