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Oracle 1Z0-921 試験シラバストピック:

Oracle MySQL 2021 Implementation Essentials 認定 1Z0-921 試験問題：

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 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.
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.

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

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

3. Which activity will take place if a table is created with both the compression and encryption options?

A) The compression is performed, the ''data_at_rest_flag" is turned on and the tablespace data is encrypted.
B) The compression is performed before tablespace data is encrypted.
C) The system generates an error because the COMPRESSION and ENCRYPTION options cannot be used together.
D) The tablespace data is encrypted first and then compression is performed.

4. Which is true about inserting an additional line in a single document stored in MySQL document store?

A) The path specified must be an array position past the end of an array using the JSON_POSITION statement.
B) You cannot insert a single line, you have to replace the entire document with a new document.
C) You specify the new element,s position in the JSON_ARRAY_INSERT statement.
D) Any new lines can only be inserted at the end of the document.

5. Which statement will display the status of the partitioning plug-in?

A) SHOW PLUGINS WHERE Name= 'partition';
B) SHOW STATUS PLUGINS WHERE Name= 'PARTITIONING';
C) USE SYS SCHEMA; SHOW PLUGINS STATUS;
D) SELECT PLUGIN_NAME, PLUGIN_VERSION, PLUGIN_STATUS FROM INFOMRATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME= 'partition';

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