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Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. Which query will find rows in a table that have no counterpart in another table?

A) SELECT left_tbl.*FROM left_tbl LEFT JOIN right_tbl ON left_tbl.id=right_tbl.idWHERE right_tbl.id IS NULL;
B) SELECT t1.name, t2.name2FROM employee t1 INNER JOIN info t2 WHERE t1.name=t2.name;
C) SELECT *FROM table1 INNER JOIN table2 ON table1.id=table2.id WHERE table1.id=! table2.id;
D) SELECT t1.name, t2.name2FROM employee AS t1 INNER JOIN info AS t2 ON t1.name= t2.name2;

2. When should you perform a backup in a MySQL database?
Response:

A) After critical data updates or before making significant changes to the database.
B) Only when the database size exceeds a certain limit.
C) Only during scheduled maintenance windows.
D) After every successful query execution.

3. You need to change the password level for a test system.
Which two allow to change this level before you create new test user/passwords?

A) Add validate_password_policy=,new level, in the [mysqld] section of the MySQL configuration file.
B) SET GLOBAL validate_password_policy=,new level,;
C) SET GLOBAL force_password_complex_policy=0;
D) Add validate_password=,new level, in the [security] section of the MySQL configuration file.

4. You have a backup image file that is backed up using MySQL Enterprise Backup with the -compress option:
/home/mysq1/backup/full/mybackup/myimage. Img

You are required to perform a database restore to a new machine to provision the database. Which command can provision the new database in the datadir as /home/mysql/data/MEB?

A)

B)

C)

D)

E)

5. Which component of MySQL Enterprise Monitor provides trend analysis and capacity planning for MySQL databases?
Response:

A) MySQL Query Analyzer
B) MySQL Dashboard
C) MySQL Advisors
D) Query Analyzer

Solutions: