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Oracle 1Z1-921 Exam Syllabus Topics:

Oracle MySQL 2021 Implementation Essentials Sample Questions:

Question 1

You have three machines with MySQL Databases running on Linux platform.
Which backup procedures would allow online and remote backup of the MySQL Database on the three machines to a connected Storage NFS?

A. 1. Mount the Remote Storage NFS volume to each of the three machines with proper privilege for the backup OS user to have all access.2. Install MySQL Enterprise Backup on all three machines.3. Start mysqlbackup on all machines to back up the database to the mounted volume using - -backup-dir.4. Validate the backup using the mysqlbackup program to ensure that the backup created is valid.
B. 1. Mount the Remote Storage NFS volume to each of the three machines with proper privilege for the backup OS user to have all access.2. Install MySQL Workbench on a separate machine, which is used to connect to the three machines to back up and restore.3. Startup MySQL backup from MySQL Workbench to back up the three databases.4. Validate the backup by using MySQL Workbench to ensure that the backup created is valid.
C. 1. Mount the Remote Storage NFS volume to each of the three machines with proper privilege for the backup OS user to have all access.2. Install MySQL Enterprise Backup on machine which is used to start the backup.3. Start mysqlbackup on only one machine with the installation to back up the databases for the three machines to the mounted volume using - -backup-dir and by giving--hosts=machine1:port1, machine2:port2, machine3:port3.4. Validate the backups using the mysqlbackup program to ensure that the backups created are valid.
D. 1. Mount the Remote Storage NFS volume to each of the three machines with proper privilege for the backup OS user to have all access.2. Install MySQL Enterprise Backup on the machine that is used to start the backup.3. Start mysqlbackup on only one machine with the installation to back up the databases for the three machines to the mounted volume using - - backup-dir and by specifying -- config-files=my1.cnf, my2.cnf, my3.cnf.my1.cnf, my2cnf, and my3.cnf are the MySQL Database Configuration files on the three machines.4. Validate the backup by using the mysqlbackup program to ensure that the backup created is valid.

Question 2

MySQL is installed on a Linux server with the configuration:
Which two methods can change the default options to use the authentication plug-in that implements SHA-256 hashing for user account passwords?

A. Create user by using CREATE USER 'newuser'@'localhost' IDENTIFIED WITH 'Sh@256Pa33';
B. Add default_authentication_plugin=sha256_password under [mysqld] in the configuration file.
C. Create user by using CREATE USER 'newuser' @'localhost' SET PASSWORD AS 'Sh@256Pa33';
D. Add --default_authentication_plugin=sha256_password on the command line when you invoke the server.

Question 3

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 storage space will be reduced.
D. The table will be checked for errors and repaired.

Question 4

Which three statements describe MySQL Enterprise Backup?

A. MySQL Enterprise Backup is an optimized backup based on mysqldump with optimized row locking.
B. MySQL Enterprise Backup offers backup based on Oracle RMAN with optimized row locking.
C. MySQL Enterprise Backup can be used to send backups to Oracle Cloud Infrastructure Storage Service.
D. MySQL Enterprise Backup provides the point-in-time recovery functionality.
E. MySQL Enterprise Backup can be used to import/export data from on-premises MySQL installations.

Question 5

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. MySQL Audit and MySQL Workbench
C. SQL Enterprise Monitor and MySQL Enterprise Authentication
D. MySQL Workbench and MySQL Enterprise Firewall

Solutions: