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Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. Which of the following statements is true regarding MySQL user account privileges?
Response:

A) A user with the SUPER privilege can only read data from the database.
B) The GRANT option allows a user to revoke privileges from other users.
C) The USAGE privilege allows a user to connect to the MySQL server but grants no other privileges.
D) The RELOAD privilege allows a user to delete data from a table.

2. 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.

3. Which three options are valid reasons for using a primary key in a table?

A) exporting data faster with mysqldump
B) maintaining a history of row insertions or updates
C) increasing performance when using select statements
D) to make it easier to change the PRIMARY KEY value
E) automatic storage of data in a sorted order
F) preventing duplicate keys

4. Which statement adds a column with the largest integer data type?

A) ALTER TABLE SCIENTIFIC ADD scientific_value DECIMAL(15,10);
B) ALTER TABLE SCIENTIFIC ADD scientific_value INTEGER;
C) ALTER TABLE SCIENTIFIC ADD scientific_value BIGINT;
D) ALTER TABLE SCIENTIFIC ADD scientific_value DECIMAL(10,10);

5. You have a backup image file that is backed up using MySQL Enterprise Backup with the -compress option:
/home/mysq1/backup/full/mybackup/myimage. Img

You are required to perform a database restore to a new machine to provision the database. Which command can provision the new database in the datadir as /home/mysql/data/MEB?

A)

B)

C)

D)

E)

Solutions: