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Updated: Sep 04, 2026
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Oracle 1Z0-921 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Oracle MySQL 2021 Implementation Essentials |
| Exam Number: | 1Z0-921 |
| Exam Duration: | 120 minutes |
| Available Languages: | English |
| Real Exam Qty: | 60-80 (varies by exam version) |
| Related Certifications: | MySQL Implementation Associate MySQL 8.0 Database Administrator |
| Exam Format: | Multiple Choice Questions, Scenario-based Questions |
| Recommended Training: | Oracle MySQL Training (Oracle University) |
| Exam Registration: | Pearson VUE Oracle Exams Oracle Certification Registration |
| Sample Questions: | Oracle 1Z0-921 Sample Questions |
| Exam Way: | Online proctored or test center (Oracle Pearson VUE delivery) |
| Pre Condition: | No formal prerequisite; basic MySQL and database knowledge recommended |
| Official Syllabus URL: | https://education.oracle.com/ |
Oracle 1Z0-921 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Data Management and SQL Operations | - SQL queries and DML operations - Indexing and optimization basics |
| Topic 2: MySQL Architecture and Installation | - MySQL server architecture - Installation and configuration |
| Topic 3: Database Design and Development | - Schema design principles - Data types and normalization |
| Topic 4: Security and User Management | - User accounts and privileges - Authentication plugins (PAM, AD integration) |
| Topic 5: Monitoring and Troubleshooting | - Performance monitoring - Basic troubleshooting techniques |
| Topic 6: Backup, Recovery, and Replication | - Backup strategies - Replication concepts and configuration |
Oracle MySQL 2021 Implementation Essentials Sample Questions:
Question 1
Which two methods help prevent MySQL security risks?
A. Grant only permissions that a user requires.
B. Allow unauthorized clients to connect to the server.
C. Transmit plain (unencrypted) data over networks.
D. Use a firewall to control access to MySQL ports.
E. Ensure that MySQL accounts have short and easy passwords.
F. Use the secure installation script "mysql_alays_secure_installation".
Question 2
Which three are characteristics of the JSON data type?
A. A set of SQL functions substantially support the SQL utilization of the data type.
B. Comparisons of JSON values are not case-sensitive.
C. Key or array references enable quick read-access to look up document elements directly.
D. It is based on the TEXT data type.
E. It supports indexing directly against the JSON-defined column.
F. It validates the JSON syntax on insert or merge.
Question 3
Which four authentication protocols are allowed when using MySQL Enterprise Authentication?
A. Simple Authentication and Security Layer
B. SECURID authentication and authorization identity
C. connections through the local host via the UNIX socket file
D. authentication via Pluggable Authentication Modules (PAMs)
E. Native Windows services
F. authentication using SHA-256 password hashing
Question 4
You have been using mysqldump for logical backups of your MySQL databases. Your MySQL database size has been growing. Which two options can reduce the backup size and speed up the backup time?
A. Use MySQL Enterprise Backup with the - -compress option to compress the backup files and use - - compress-level to select the level of compression.
B. Use mysqldump with - -incremental together with the - -compress option to back up incrementally based on previous full backup and compress the incremental backup files.
C. Use MySQL Enterprise Backup with the - -size=compress to compress the backup file.
D. Use mysqldump with the - -changesonly option.
E. Use MySQL Enterprise Backup with the - - incremental policy to back up incrementally based on previous full backup.
Question 5
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. USE SYS SCHEMA; SHOW PLUGINS STATUS;
C. SHOW PLUGINS WHERE Name= 'partition';
D. SHOW STATUS PLUGINS WHERE Name= 'PARTITIONING';
Solutions:
| Question 1 Answer: B,C | Question 2 Answer: C,E,F | Question 3 Answer: C,D,E,F | Question 4 Answer: A,D | Question 5 Answer: A |
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