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Oracle 1Z1-921 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Backup, Recovery, and Replication | - Replication concepts and configuration - Backup strategies |
| Security and User Management | - Authentication plugins (PAM, AD integration) - User accounts and privileges |
| Data Management and SQL Operations | - SQL queries and DML operations - Indexing and optimization basics |
| Monitoring and Troubleshooting | - Basic troubleshooting techniques - Performance monitoring |
| Database Design and Development | - Schema design principles - Data types and normalization |
| MySQL Architecture and Installation | - MySQL server architecture - Installation and configuration |
Oracle MySQL 2021 Implementation Essentials Sample Questions:
Your newly-created Oracle Cloud Infrastructure instance is not available for login in. Which is a valid reason for this issue?
- A. The opc user can be used to access MySQL only with the created SSH-Key.
- B. You forgot to create the correct SSL/TLC certificate during the setup process.
- C. Only root is allowed to access from non-localhost.
- D. You forgot to enable port 3306.
- E. The OCI instance is still in the "creation" process.
Correct Answer: D 🗳️
Which statement will display the status of the partitioning plug-in?
- A. SELECT PLUGIN_NAME, PLUGIN_VERSION, PLUGIN_STATUS FROM INFOMRATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME= 'partition';
- B. SHOW STATUS PLUGINS WHERE Name= 'PARTITIONING';
- C. USE SYS SCHEMA; SHOW PLUGINS STATUS;
- D. SHOW PLUGINS WHERE Name= 'partition';
Correct Answer: A 🗳️
Which three are characteristics of the JSON data type?
- A. Comparisons of JSON values are not case-sensitive.
- B. Key or array references enable quick read-access to look up document elements directly.
- C. It is based on the TEXT data type.
- D. It validates the JSON syntax on insert or merge.
- E. A set of SQL functions substantially support the SQL utilization of the data type.
- F. It supports indexing directly against the JSON-defined column.
Correct Answer: B,D,F 🗳️
Which three are requirements for MySQL Group Replication (GR)?
- A. GR only works with MySQL versions 8.0.12 or higher.
- B. The binary log format must be set to mixed.
- C. Data to be replicated must be stored in the InnoDB transactional storage engine.
- D. The use of global transaction identifiers is required.
- E. Primary keys are required on every replicated table.
- F. The minimum number of required nodes for achieving a consensus is two.
Correct Answer: B,C,E 🗳️
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 BIGINT;
- C. ALTER TABLE SCIENTIFIC ADD scientific_value INTEGER;
- D. ALTER TABLE SCIENTIFIC ADD scientific_value DECIMAL(10,10);
Correct Answer: B 🗳️
