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Oracle 1Z0-921 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Backup and Recovery | 10% | - Data import/export with MySQL Workbench - Install and configure backup - MySQL Enterprise Backup overview - Backup encryption and compression |
| Topic 2: Database Design | 15% | - Basic SQL queries - Table partitioning - Indexes, constraints and joins - MySQL Document Store - MySQL data types - Create and manage databases and tables |
| Topic 3: High Availability and Replication | 10% | - Replication concepts and setup - InnoDB Cluster deployment - High availability solutions overview - GTID-based replication |
| Topic 4: MySQL Security | 20% | - Authorization and privilege management - Data Masking and De-identification - MySQL Enterprise Audit - Transparent Data Encryption (TDE) - Password policies and authentication - MySQL Enterprise Firewall |
| Topic 5: MySQL Enterprise Monitor | 10% | - Query Analyzer usage - Features and benefits - Architecture: Service Manager and Agents - Custom Advisors configuration |
| Topic 6: MySQL Database Service and HeatWave | 10% | - Service overview and provisioning - HeatWave setup and usage - Monitoring and management - High availability configuration |
| Topic 7: Installation and Architecture | 15% | - Install MySQL Enterprise Server - Configure MySQL Enterprise Server settings - MySQL infrastructure architecture overview |
| Topic 8: Oracle MySQL Enterprise Product Suite | 10% | - Oracle products certified to work with MySQL Enterprise Edition - Products and features of MySQL Enterprise Edition - Differences between MySQL Enterprise Edition, Community Edition and Standard Edition |
Oracle MySQL 2021 Implementation Essentials Sample Questions:
An Oracle Cloud Infrastructure customer already has many database instances configured and running in the cloud; however, they are reporting that they are unable to create any more instances.
What could be the problem?
- A. The customer does not have proper user rights.
- B. The customer reached the database instance limit of 32.
- C. The customer has not kept up with their patching requirements; new instances cannot be created unless the majority or the template of existing instances are up-to-date.
- D. The customer account might have reached resource quota/limits.
Correct Answer: B 🗳️
What SQL keyword must be specified when creating a foreign key constraint?
- A. a TRIGGER on the child table for cascading delete statements
- B. the SET_FOREGIN variable in the my .cnf file
- C. an index on the foreign key
- D. a REFERENCES in the child table to the parent table
- E. unique PRIMARY key values for both child and parent tables
Correct Answer: A 🗳️
Which features of MySQL Enterprise Edition should you use to proactively monitor and track data changes in your databases?
- A. MySQL Audit and MySQL Workbench
- B. MySQL Workbench and MySQL Enterprise Firewall
- C. SQL Enterprise Monitor and MySQL Enterprise Authentication
- D. MySQL Enterprise Monitor and MySQL Audit
Correct Answer: C 🗳️
Which three are characteristics of the JSON data type?
- A. It is based on the TEXT data type.
- B. It validates the JSON syntax on insert or merge.
- C. A set of SQL functions substantially support the SQL utilization of the data type.
- D. It supports indexing directly against the JSON-defined column.
- E. Comparisons of JSON values are not case-sensitive.
- F. Key or array references enable quick read-access to look up document elements directly.
Correct Answer: B,D,F 🗳️
Which is true about inserting an additional line in a single document stored in MySQL document store?
- A. You specify the new element,s position in the JSON_ARRAY_INSERT statement.
- B. Any new lines can only be inserted at the end of the document.
- C. You cannot insert a single line, you have to replace the entire document with a new document.
- D. The path specified must be an array position past the end of an array using the JSON_POSITION statement.
Correct Answer: A 🗳️
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