Try Oracle : 1Z0-921 valid & accurate questions and answers
Updated: Jul 29, 2026
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Oracle 1Z0-921 Exam Overview:
| Certification Vendor: | Oracle |
| Exam Name: | Oracle MySQL 2021 Implementation Essentials |
| Exam Number: | 1Z0-921 |
| Passing Score: | 65% |
| Certificate Validity Period: | 3 years |
| Exam Price: | USD $245 |
| Exam Duration: | 90 minutes |
| Related Certifications: | Oracle MySQL Certified Professional |
| Exam Format: | Multiple Choice, Multiple Select |
| Available Languages: | English |
| Real Exam Qty: | 52-78 |
| Recommended Training: | Oracle MySQL 2021 Implementation Training |
| Exam Registration: | Pearson VUE Oracle University Registration |
| Sample Questions: | Oracle 1Z0-921 Sample Questions |
| Exam Way: | Online proctored or onsite at authorized test centers |
| Pre Condition: | No mandatory prerequisites; recommended to have hands-on experience with MySQL Enterprise Edition |
| Official Syllabus URL: | https://education.oracle.com/exam-1z0-921-mysql-2021-implementation-essentials/pexam_1Z0-921 |
Oracle 1Z0-921 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Database Design | 15% | - MySQL data types - MySQL Document Store - Indexes, constraints and joins - Create and manage databases and tables - Table partitioning - Basic SQL queries |
| Topic 2: High Availability and Replication | 10% | - Replication concepts and setup - GTID-based replication - InnoDB Cluster deployment - High availability solutions overview |
| Topic 3: Backup and Recovery | 10% | - Data import/export with MySQL Workbench - Install and configure backup - Backup encryption and compression - MySQL Enterprise Backup overview |
| Topic 4: MySQL Database Service and HeatWave | 10% | - HeatWave setup and usage - Monitoring and management - High availability configuration - Service overview and provisioning |
| Topic 5: Oracle MySQL Enterprise Product Suite | 10% | - Products and features of MySQL Enterprise Edition - Differences between MySQL Enterprise Edition, Community Edition and Standard Edition - Oracle products certified to work with MySQL Enterprise Edition |
| Topic 6: MySQL Security | 20% | - Data Masking and De-identification - Password policies and authentication - MySQL Enterprise Audit - MySQL Enterprise Firewall - Authorization and privilege management - Transparent Data Encryption (TDE) |
| Topic 7: MySQL Enterprise Monitor | 10% | - Architecture: Service Manager and Agents - Query Analyzer usage - Custom Advisors configuration - Features and benefits |
| Topic 8: Installation and Architecture | 15% | - Configure MySQL Enterprise Server settings - MySQL infrastructure architecture overview - Install MySQL Enterprise Server |
Oracle MySQL 2021 Implementation Essentials Sample Questions:
1. How would you restrict a user Joe from accessing all MySQL database objects?
A) CREATE USER ,joe'@,0.0.0.0, SET Password=PASSWORD(,% ! %,)
B) Insert Joe,s name into the mysql.user_restriction cable, and issue the FLUSH PRIVILEGES command.
C) UPDATE mysql.user SET Password=PASSWORD(,Invalid,) WHERE User=,joe';
D) REVOKE ALL PRIVILEGES, GRANT OPTION FROM ,joe,@,%,;
E) CREATE USER , joe,@1' %' DENY ALL PRIVILEGES
2. What are the two main components required to set up persistent storage for MySQL on Kubernetes?
Response:
A) Secret and Deployment
B) PVC (Persistent Volume Claim) and PV (Persistent Volume)
C) Pod and ReplicaSet
D) PVC (Persistent Volume Claim) and ConfigMap
3. MySQL is installed on a Linux server with the configuration:
Which two methods can change the default options to use the authentication plug-in that implements SHA-256 hashing for user account passwords?
A) Add --default_authentication_plugin=sha256_password on the command line when you invoke the server.
B) Create user by using CREATE USER 'newuser'@'localhost' IDENTIFIED WITH 'Sh@256Pa33';
C) Create user by using CREATE USER 'newuser' @'localhost' SET PASSWORD AS 'Sh@256Pa33';
D) Add default_authentication_plugin=sha256_password under [mysqld] in the configuration file.
4. Which three components can MySQL InnoDB Cluster use to Achieve database high availability?
A) MySQL Servers with Group Replication to replicate data to all members of the cluster.
B) MySQL Online Hot Backup to keep data consistent and always ready to be used.
C) MySQL Router to ensure client requests are load balanced and routed to the correct servers.
D) MySQL Shell to create and administer InnoDB Clusters using the built-in AdminAPI.
E) MySQL X Plugin to enable MySQL to use the X Protocol to speed up and monitor data replication.
5. Your newly-created Oracle Cloud Infrastructure instance is not available for login in. Which is a valid reason for this issue?
A) Only root is allowed to access from non-localhost.
B) The OCI instance is still in the "creation" process.
C) The opc user can be used to access MySQL only with the created SSH-Key.
D) You forgot to enable port 3306.
E) You forgot to create the correct SSL/TLC certificate during the setup process.
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: B | Question # 3 Answer: A,B | Question # 4 Answer: A,C,D | Question # 5 Answer: D |
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