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Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. You are using the innoDB engine and the innodb_f ile_per_table option is set.
You delete a significant number of rows of a large table named inventory and issue the command optimize table inventory.
What will happen to the inventory table?

A) The table statistics will be stored.
B) The table will be optimized and replicated.
C) The table will be checked for errors and repaired.
D) The table storage space will be reduced.

2. Which features of MySQL Enterprise Edition should you use to proactively monitor and track data changes in your databases?

A) MySQL Enterprise Monitor and MySQL Audit
B) SQL Enterprise Monitor and MySQL Enterprise Authentication
C) MySQL Workbench and MySQL Enterprise Firewall
D) MySQL Audit and MySQL Workbench

3. The MySQL Enterprise Monitor Agent requires a user configured in each MySQL instance that is being monitored with suitable privileges to collect information about the server.
Which statement is correct?

A) MySQL Enterprise Monitor creates the required users automatically.
B) The super privilege is required when creating and populating the inventory table, as well as running statements such as show master logs or SHOW ENGINE INNODB STATUS.
C) Monitoring metrics need super and root privileges because they are not available for a less-privileged user.
D) The super privilege is required when starting, stopping, or restarting monitored MySQL databases.

4. The user -os-user'@"localhost" was created to monitor connections and shut down the server, and was granted these privileges:
GRANT PROCESS, SHUTDOWN ON *.* TO "OS-user*@"localhost';
Which three are commands that the os-user can execute?

A) SHOW PROCESSLIST;
B) GRANT PROXY
C) SHUTDOWN
D) KILL PROCESS;
E) SHOW STATUS;
F) SHOW BINLOG EVENTS;

5. An existing MySQL Database environment has been doing backup and restore in a logical way by using the mysq1dump and mysq1 client utilities. When the backup is started using mysqldump with single-transaction mode, the existing application has long wait time. When the restore is required, it takes more than three hours to restore.
What two are benefits of using mysqlbackup from MySQL Enterprise Backup in this situation?

A) MySQL Enterprise Backup does not back up system data so that it is much faster.
B) mysqlbackup can back up tables with the InnoDB engine without blocking. The backup is hot with InnoDB. Together with Incremental Backup, mysqlbackup from MySQL Enterprise Backup shortens the backup windows.
C) mysqlbackup utilities dump the full database into a SQL file, which is imported into the mysql client in single-thread mode. mysqlbackup restores data from physical backups. Physical backup methods are faster than logical methods because they involve only file coping without conversion.
D) mysqlbackup from MySQL Enterprise Backup allows logical backup with concurrency built in to get faster backup speed and restoration speed.
E) MySQL Enterprise Backup provides tape backup integration by default. It has the virtual tape option, which allows backup to tape device directly without extra third-party software integration.

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