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Updated: Aug 15, 2026
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Oracle 1Z1-921 Exam Overview:
| Certification Vendor: | Oracle |
| Exam Name: | Oracle MySQL 2021 Implementation Essentials |
| Exam Number: | 1Z0-921 |
| Exam Duration: | 120 minutes |
| Real Exam Qty: | 60-80 (varies by exam version) |
| Exam Format: | Multiple Choice Questions, Scenario-based Questions |
| Related Certifications: | MySQL 8.0 Database Administrator MySQL Implementation Associate |
| Available Languages: | English |
| Recommended Training: | Oracle MySQL Training (Oracle University) |
| Exam Registration: | Pearson VUE Oracle Exams Oracle Certification Registration |
| Sample Questions: | Oracle 1Z1-921 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 1Z1-921 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: MySQL Architecture and Installation | - MySQL server architecture - Installation and configuration |
| Topic 2: Backup, Recovery, and Replication | - Backup strategies - Replication concepts and configuration |
| Topic 3: Monitoring and Troubleshooting | - Performance monitoring - Basic troubleshooting techniques |
| Topic 4: Data Management and SQL Operations | - SQL queries and DML operations - Indexing and optimization basics |
| Topic 5: Security and User Management | - Authentication plugins (PAM, AD integration) - User accounts and privileges |
| Topic 6: Database Design and Development | - Schema design principles - Data types and normalization |
Oracle MySQL 2021 Implementation Essentials Sample Questions:
1. You want to create the user named jenny for any host server with the password secretpassi23! and the password is expired? Which command should you use?
A) CREATE USER ,jenny,@,%, IDENTIFIED WITH sha256_password BY 'SecretPass123!,;
B) CREATE USER ,jenny,@,localhost, IDENTIFIED BY (,SecretPass123!,,,256,, Expired)
C) CREATE USER ,jenny *@,localhost, IDENTIFIED WITH HASH PASSWORD(,SecretPass123!,)
D) CREATE USER ,jenny,@'%, WITH HASHED(password,,SecretPass123!,), PASSWORD EXPIRE
E) CREATE USER ,jenny,0,%t IDENTIFIED BY ,SecretPass123!, PASSWORD EXPIRE;
2. Which three are requirements for MySQL Group Replication (GR)?
A) The binary log format must be set to mixed.
B) Primary keys are required on every replicated table.
C) The minimum number of required nodes for achieving a consensus is two.
D) The use of global transaction identifiers is required.
E) GR only works with MySQL versions 8.0.12 or higher.
F) Data to be replicated must be stored in the InnoDB transactional storage engine.
3. Consider this SQL statement which is using the innoDB storage engine and with global AUTOCOMMIT = 1:
What is the result after issuing the rollback command?
A) Only the t1 table is created.
B) Both the tables, t1 and t2, are created.
C) Both the tables, t1 and t2, are not created because there is an explicit ROLLBACK.
D) Only the t2 table is created.
4. Which statement would you use to remove the population column from the city table?
A) DELETE population FROM city;
B) ALTER TABLE city DROP population;
C) ALTER TABLE city DELETE population;
D) ALTER TABLE city LESS population;
E) DROP population FROM city;
5. Which three statements are true about MySQL Enterprise Backup?
A) It enables you to take non-locking backups.
B) It cannot back up encrypted tablespaces.
C) It provides the ability to create incremental backups.
D) It performs logical backups.
E) It performs hot or warm backups.
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: A,B,F | Question # 3 Answer: B | Question # 4 Answer: B | Question # 5 Answer: A,C,D |
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