Oracle 1Z1-921 : MySQL 2021 Implementation Essentials

  • Exam Code: 1Z1-921
  • Exam Name: MySQL 2021 Implementation Essentials
  • Updated: Oct 05, 2026   Q&As: 78 Questions and Answers

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Oracle 1Z1-921 Exam Syllabus Topics:
SectionWeightObjectives
Topic 1: MySQL Database Service and HeatWave10%- Service overview and provisioning
- High availability configuration
- Monitoring and management
- HeatWave setup and usage
Topic 2: Oracle MySQL Enterprise Product Suite10%- 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
Topic 3: MySQL Enterprise Monitor10%- Architecture: Service Manager and Agents
- Custom Advisors configuration
- Features and benefits
- Query Analyzer usage
Topic 4: Backup and Recovery10%- MySQL Enterprise Backup overview
- Install and configure backup
- Backup encryption and compression
- Data import/export with MySQL Workbench
Topic 5: Installation and Architecture15%- Configure MySQL Enterprise Server settings
- MySQL infrastructure architecture overview
- Install MySQL Enterprise Server
Topic 6: High Availability and Replication10%- Replication concepts and setup
- InnoDB Cluster deployment
- GTID-based replication
- High availability solutions overview
Topic 7: MySQL Security20%- Authorization and privilege management
- MySQL Enterprise Firewall
- MySQL Enterprise Audit
- Transparent Data Encryption (TDE)
- Password policies and authentication
- Data Masking and De-identification
Topic 8: Database Design15%- MySQL Document Store
- Table partitioning
- Create and manage databases and tables
- MySQL data types
- Basic SQL queries
- Indexes, constraints and joins
Oracle MySQL 2021 Implementation Essentials Sample Questions:
Question #1

Which three statements describe MySQL Enterprise Backup?

  • A. MySQL Enterprise Backup provides the point-in-time recovery functionality.
  • B. MySQL Enterprise Backup offers backup based on Oracle RMAN with optimized row locking.
  • C. MySQL Enterprise Backup can be used to send backups to Oracle Cloud Infrastructure Storage Service.
  • D. MySQL Enterprise Backup can be used to import/export data from on-premises MySQL installations.
  • E. MySQL Enterprise Backup is an optimized backup based on mysqldump with optimized row locking.
Reveal Solution  Discussion  0

Correct Answer: A,B,E  🗳️

Question #2

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. You forgot to enable port 3306.
  • D. The opc user can be used to access MySQL only with the created SSH-Key.
  • E. You forgot to create the correct SSL/TLC certificate during the setup process.
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #3

The slave connects to the master and asks for updated records. What command was issued for this to happen?

  • A. RUN SLAVE
  • B. SLAVE RUN
  • C. SLAVE START
  • D. START RUN SLAVE
  • E. START SLAVE
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #4

Which three options are valid reasons for using a primary key in a table?

  • A. exporting data faster with mysqldump
  • B. increasing performance when using select statements
  • C. automatic storage of data in a sorted order
  • D. preventing duplicate keys
  • E. maintaining a history of row insertions or updates
  • F. to make it easier to change the PRIMARY KEY value
Reveal Solution  Discussion  0

Correct Answer: A,B,D  🗳️

Question #5

Which is true about inserting an additional line in a single document stored in MySQL document store?

  • A. You cannot insert a single line, you have to replace the entire document with a new document.
  • B. You specify the new element,s position in the JSON_ARRAY_INSERT statement.
  • C. Any new lines can only be inserted at the end of the document.
  • D. The path specified must be an array position past the end of an array using the JSON_POSITION statement.
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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