Oracle MySQL 2021 Implementation Essentials : 1Z0-921 exam

Oracle 1Z0-921 Actual PDF
  • Exam Code: 1Z0-921
  • Exam Name: MySQL 2021 Implementation Essentials
  • Updated: Oct 20, 2026
  • Q & A: 78 Questions and Answers
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Oracle 1Z0-921 Exam Syllabus Topics:

SectionWeightObjectives
High Availability and Replication10%- High availability solutions overview
- GTID-based replication
- Replication concepts and setup
- InnoDB Cluster deployment
MySQL Database Service and HeatWave10%- HeatWave setup and usage
- Monitoring and management
- Service overview and provisioning
- High availability configuration
Oracle MySQL Enterprise Product Suite10%- Differences between MySQL Enterprise Edition, Community Edition and Standard Edition
- Oracle products certified to work with MySQL Enterprise Edition
- Products and features of MySQL Enterprise Edition
MySQL Security20%- Authorization and privilege management
- Data Masking and De-identification
- Transparent Data Encryption (TDE)
- Password policies and authentication
- MySQL Enterprise Audit
- MySQL Enterprise Firewall
Database Design15%- Basic SQL queries
- Table partitioning
- Indexes, constraints and joins
- MySQL data types
- MySQL Document Store
- Create and manage databases and tables
Installation and Architecture15%- Configure MySQL Enterprise Server settings
- MySQL infrastructure architecture overview
- Install MySQL Enterprise Server
Backup and Recovery10%- Backup encryption and compression
- Install and configure backup
- Data import/export with MySQL Workbench
- MySQL Enterprise Backup overview
MySQL Enterprise Monitor10%- Features and benefits
- Query Analyzer usage
- Custom Advisors configuration
- Architecture: Service Manager and Agents

Oracle MySQL 2021 Implementation Essentials Sample Questions:

Question #1

Which of the following statements is true regarding MySQL user account privileges?
Response:

  • A. The GRANT option allows a user to revoke privileges from other users.
  • B. A user with the SUPER privilege can only read data from the database.
  • C. The USAGE privilege allows a user to connect to the MySQL server but grants no other privileges.
  • D. The RELOAD privilege allows a user to delete data from a table.
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #2

The user 'fwuser'@'localhost% was registered with the MySQL Enterprise Firewall and was granted privileges for the SAKILA database. You executed the commands:

You want to clear the account whitelist for the * fwuser" @* localhost* user. Which statement should you run to accomplish this?

  • A.
  • B.
  • C.
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Question #3

Your newly-created Oracle Cloud Infrastructure instance is not available for login in. Which is a valid reason for this issue?

  • A. You forgot to create the correct SSL/TLC certificate during the setup process.
  • B. Only root is allowed to access from non-localhost.
  • C. The opc user can be used to access MySQL only with the created SSH-Key.
  • D. You forgot to enable port 3306.
  • E. The OCI instance is still in the "creation" process.
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

Question #4

You are testing a new application and want to use data masking but the database is empty. What option will generate dummy data for you to use for testing?

  • A. Execute the sakila-data. sqi script to populate the database
  • B. Use mysqldump to import data from the sakila_dummy database sample data set.
  • C. Use MySQL Enterprise High Availability to access one of the available data tables
  • D. Alter the table with the statement: ALTER TABLE IMPORT DATA WITH data_masking plugin;
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

Question #5

Which two deployment architectures could you use for scaling-out database reads?

  • A. Edit the configuration file and increase the value for parallel_read_workers and reboot the server
  • B. Altering the storage engine for all tables to memory to increase performance.
  • C. Adding a memcached-tier for caching data and objects in RAM to reduce the number of times an external data source must be read.
  • D. Changing the system setting with memory stickiness to true in order not to swap out mysq1dfrom memory.
  • E. Implementing a three-node, single-primary InnoDB Cluster.
Reveal Solution  Discussion  0

Correct Answer: B,E  🗳️

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