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Oracle MySQL 2021 Implementation Essentials Sample Questions:

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 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.
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 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.
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 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.

2. Which three are requirements for MySQL Group Replication (GR)?

A) The minimum number of required nodes for achieving a consensus is two.
B) Primary keys are required on every replicated table.
C) Data to be replicated must be stored in the InnoDB transactional storage engine.
D) The use of global transaction identifiers is required.
E) GR only works with MySQL versions 8.0.12 or higher.
F) The binary log format must be set to mixed.

3. You execute this statement:
SELECT NULL=NULL;
What is the result?

A) 0
B) NULL
C) 1
D) TRUE
E) FALSE

4. What is Kubernetes in the context of MySQL?
Response:

A) A database engine for MySQL.
B) An open-source container orchestration platform.
C) A cloud service provided by Oracle for MySQL databases.
D) A database management tool for MySQL.

5. What three are ways to export and import data in MySQL Workbench?

A) SQL Data Export and Import Wizard
B) Backup Data Export and Import Wizard
C) Data Modeling Import Export Wizard
D) Result Data Export and Import
E) Binary Data Export and Import Wizard
F) Table Data Export and Import Wizard

Solutions: