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Oracle 1Z0-921 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Oracle MySQL 2021 Implementation Essentials |
| Exam Number: | 1Z0-921 |
| Real Exam Qty: | 60-80 (varies by exam version) |
| Exam Duration: | 120 minutes |
| Exam Format: | Multiple Choice Questions, Scenario-based Questions |
| Available Languages: | English |
| Related Certifications: | MySQL 8.0 Database Administrator MySQL Implementation Associate |
| Recommended Training: | Oracle MySQL Training (Oracle University) |
| Exam Registration: | Oracle Certification Registration Pearson VUE Oracle Exams |
| 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: Backup, Recovery, and Replication | - Backup strategies - Replication concepts and configuration |
| Topic 2: Monitoring and Troubleshooting | - Performance monitoring - Basic troubleshooting techniques |
| Topic 3: Data Management and SQL Operations | - SQL queries and DML operations - Indexing and optimization basics |
| Topic 4: Database Design and Development | - Schema design principles - Data types and normalization |
| Topic 5: Security and User Management | - Authentication plugins (PAM, AD integration) - User accounts and privileges |
| Topic 6: MySQL Architecture and Installation | - MySQL server architecture - Installation and configuration |
Oracle MySQL 2021 Implementation Essentials Sample Questions:
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 - - incremental policy to back up incrementally based on previous full backup.
- B. Use MySQL Enterprise Backup with the - -compress option to compress the backup files and use - - compress-level to select the level of compression.
- C. Use MySQL Enterprise Backup with the - -size=compress to compress the backup file.
- D. Use mysqldump with the - -changesonly option.
- E. Use mysqldump with - -incremental together with the - -compress option to back up incrementally based on previous full backup and compress the incremental backup files.
Correct Answer: B,D 🗳️
You need to load the MySQL Enterprise Audit plug-in at database startup and prevent the audit plug-in from being removed at run time.
Which two options should you include in the MySQL configuration file?
- A. LOAD PLUGIN=AUDIT_LOG
- B. audit_log_permanent=ON
- C. audit-log=FORCE_PLUS_PERMANENT
- D. plugin-load=audit_log.so
- E. plugin-audit=ON, ALWAYS
Correct Answer: B,C 🗳️
Which statement adds a column with the largest integer data type?
- A. ALTER TABLE SCIENTIFIC ADD scientific_value DECIMAL(15,10);
- B. ALTER TABLE SCIENTIFIC ADD scientific_value DECIMAL(10,10);
- C. ALTER TABLE SCIENTIFIC ADD scientific_value INTEGER;
- D. ALTER TABLE SCIENTIFIC ADD scientific_value BIGINT;
Correct Answer: D 🗳️
You have created your Compute instance using an Oracle-provided Oracle Linux image.
You want to log in to your OCI Compute instance using SSH. Which three items do you need for this process?
- A. User Password
- B. The root user
- C. The opc user
- D. Public IP address
- E. SSH private key
- F. SSH public key
Correct Answer: C 🗳️
You have a backup image file that is backed up using MySQL Enterprise Backup with the -compress option:
/home/mysq1/backup/full/mybackup/myimage. Img
You are required to perform a database restore to a new machine to provision the database. Which command can provision the new database in the datadir as /home/mysql/data/MEB?
- A.
- B.
- C.
- D.
- E.
Correct Answer: E 🗳️
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