Download Oracle : 1Z0-921 Questions & Answers as PDF & Test Software
Updated: Jun 03, 2026
No. of Questions: 78 Questions & Answers with Testing Engine
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Oracle MySQL 2021 Implementation Essentials Sample Questions:
1. Which Oracle product is certified to work with MySQL Enterprise Edition?
A) Oracle Enterprise Manager
B) Oracle Application Express
C) Oracle Data Pump
D) Oracle Enterprise Backup
2. Which three are recommended configurations for installing and running MySQL InnoDB Cluster?
A) Networks must be in separate regions.
B) smaller VM,s work best - with a maximum of eight vCPU,s and 16GB of RAM
C) Use Network-attached storage (NAS) for the data files.
D) The number of machines per group must be 3, 5, 7 or 9.
E) Groups must be in even numbers; 2, 4, 6, 8.
F) use SSD,s for data and replication logs
G) isolated machine resources
3. What are two ways in which customers can receive notifications such as outages, configuration changes, database emergencies, and other information on their Database as a Service instances?
A) Email
B) Direct support call from an Oracle representative
C) Browser pop-ups
D) Application-to-application messaging
E) SMS-notification tab on the dashboard
4. You need to change the password level for a test system.
Which two allow to change this level before you create new test user/passwords?
A) Add validate_password_policy=,new level, in the [mysqld] section of the MySQL configuration file.
B) SET GLOBAL validate_password_policy=,new level,;
C) SET GLOBAL force_password_complex_policy=0;
D) Add validate_password=,new level, in the [security] section of the MySQL configuration file.
5. 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) 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.
B) 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.
C) mysqlbackup from MySQL Enterprise Backup allows logical backup with concurrency built in to get faster backup speed and restoration speed.
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.
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: C,D,E | Question # 3 Answer: A,E | Question # 4 Answer: A,B | Question # 5 Answer: C,E |
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