Oracle MySQL 2021 Implementation Essentials - 1Z1-921

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Oracle 1Z1-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

Question 1

You have been using mysqldump for logical backups of your MySQL databases. Your MySQL database size has been growing. Which two options can reduce the backup size and speed up the backup time?

A. Use mysqldump with the - -changesonly option.
B. Use MySQL Enterprise Backup with the - -size=compress to compress the backup file.
C. Use MySQL Enterprise Backup with the - - incremental policy to back up incrementally based on previous full backup.
D. Use mysqldump with - -incremental together with the - -compress option to back up incrementally based on previous full backup and compress the incremental backup files.
E. Use MySQL Enterprise Backup with the - -compress option to compress the backup files and use - - compress-level to select the level of compression.

Question 2

The MySQL Replication Environment (Master and Slave) is prepared.
What two are options for connecting a Java application to the MySQL Master and Slave?

A.

B.

C.

D.

Question 3

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. mysqlbackup from MySQL Enterprise Backup allows logical backup with concurrency built in to get faster backup speed and restoration speed.
B. 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.
C. 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.
D. MySQL Enterprise Backup does not back up system data so that it is much faster.
E. 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.

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

Question 5

Which two statements are true about MySQL Enterprise Authentication?

A. MySQL Enterprise Authentication makes it more difficult to set up security because you have different sets of security policies.
B. MySQL Enterprise Authentication supports Linux Pluggable Authentication Modules (PAM).
C. MySQL Enterprise Authentication supports Windows Active Directory.
D. MySQL Enterprise Authentication determines what operation the user can perform.
E. MySQL Enterprise Edition automatically connects to Oracle Password Vault to verify user passwords..

Solutions: