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Oracle 1Z0-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

Question 1

What SQL keyword must be specified when creating a foreign key constraint?

A. a REFERENCES in the child table to the parent table
B. a TRIGGER on the child table for cascading delete statements
C. the SET_FOREGIN variable in the my .cnf file
D. unique PRIMARY key values for both child and parent tables
E. an index on the foreign key

Question 2

Which activity will take place if a table is created with both the compression and encryption options?

A. The compression is performed, the ''data_at_rest_flag" is turned on and the tablespace data is encrypted.
B. The system generates an error because the COMPRESSION and ENCRYPTION options cannot be used together.
C. The tablespace data is encrypted first and then compression is performed.
D. The compression is performed before tablespace data is encrypted.

Question 3

You just installed MySQL by Using a Package Manager on Linux.
Where are the default InnoDB redo log files stored?

A. /var/lib/mysql
B. /usr/redo
C. /etc/my.cnf
D. /usr/bin/logs
E. /usr/mysql
F. /var/lib/mysql/innodb

Question 4

Which statement will display the status of the partitioning plug-in?

A. SELECT PLUGIN_NAME, PLUGIN_VERSION, PLUGIN_STATUS FROM INFOMRATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME= 'partition';
B. USE SYS SCHEMA; SHOW PLUGINS STATUS;
C. SHOW STATUS PLUGINS WHERE Name= 'PARTITIONING';
D. SHOW PLUGINS WHERE Name= 'partition';

Question 5

Which two statements about the download of MySQL Enterprise Backup are correct?

A. MySQL Enterprise Backup comes with MySQL Utilities Package, which is available for download publicly on http://www.mysql.com.
B. MySQL Enterprise Backup comes with MySQL Connector and is freely available for download.
C. MySQL Enterprise Backup comes with all MySQL editions including community edition.
D. MySQL Enterprise Backup can be downloaded from My Oracle Support (MOS).
E. MySQL Enterprise Backup is a separate package from MySQL Enterprise Edition. It can be downloaded from https://edelivery.oracle.com.

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