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Oracle 1Z0-921 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: MySQL Security | 20% | - Password policies and authentication - Authorization and privilege management - MySQL Enterprise Firewall - Data Masking and De-identification - MySQL Enterprise Audit - Transparent Data Encryption (TDE) |
| Topic 2: MySQL Enterprise Monitor | 10% | - Architecture: Service Manager and Agents - Features and benefits - Custom Advisors configuration - Query Analyzer usage |
| Topic 3: MySQL Database Service and HeatWave | 10% | - High availability configuration - HeatWave setup and usage - Service overview and provisioning - Monitoring and management |
| Topic 4: Backup and Recovery | 10% | - Backup encryption and compression - MySQL Enterprise Backup overview - Data import/export with MySQL Workbench - Install and configure backup |
| Topic 5: Installation and Architecture | 15% | - Configure MySQL Enterprise Server settings - Install MySQL Enterprise Server - MySQL infrastructure architecture overview |
| Topic 6: Oracle MySQL Enterprise Product Suite | 10% | - Differences between MySQL Enterprise Edition, Community Edition and Standard Edition - Products and features of MySQL Enterprise Edition - Oracle products certified to work with MySQL Enterprise Edition |
| Topic 7: Database Design | 15% | - Basic SQL queries - MySQL Document Store - MySQL data types - Table partitioning - Indexes, constraints and joins - Create and manage databases and tables |
| Topic 8: High Availability and Replication | 10% | - GTID-based replication - InnoDB Cluster deployment - High availability solutions overview - Replication concepts and setup |
Oracle MySQL 2021 Implementation Essentials Sample Questions:
What is true about MySQL Enterprise Transparent Data Encryption (TDE)?
- A. Data is encrypted automatically, in real time, after it is written to storage.
- B. Tablespace keys are managed manually behind the scenes.
- C. Encryption key is stored in a centralized key memory location
- D. Enables data-at-rest encryption by encrypting the physical files of the database.
Correct Answer: D 🗳️
The user -os-user'@"localhost" was created to monitor connections and shut down the server, and was granted these privileges:
GRANT PROCESS, SHUTDOWN ON *.* TO "OS-user*@"localhost';
Which three are commands that the os-user can execute?
- A. SHUTDOWN
- B. SHOW STATUS;
- C. SHOW BINLOG EVENTS;
- D. GRANT PROXY
- E. KILL PROCESS;
- F. SHOW PROCESSLIST;
Correct Answer: A,B,E 🗳️
Which three options are valid reasons for using a primary key in a table?
- A. automatic storage of data in a sorted order
- B. to make it easier to change the PRIMARY KEY value
- C. maintaining a history of row insertions or updates
- D. increasing performance when using select statements
- E. exporting data faster with mysqldump
- F. preventing duplicate keys
Correct Answer: D,E,F 🗳️
Which three are characteristics of the JSON data type?
- A. Comparisons of JSON values are not case-sensitive.
- B. A set of SQL functions substantially support the SQL utilization of the data type.
- C. It supports indexing directly against the JSON-defined column.
- D. It is based on the TEXT data type.
- E. It validates the JSON syntax on insert or merge.
- F. Key or array references enable quick read-access to look up document elements directly.
Correct Answer: C,E,F 🗳️
When should you perform a backup in a MySQL database?
Response:
- A. After critical data updates or before making significant changes to the database.
- B. Only during scheduled maintenance windows.
- C. Only when the database size exceeds a certain limit.
- D. After every successful query execution.
Correct Answer: A 🗳️
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