Exam Name: MySQL 2021 Implementation Essentials
Certification Provider: Oracle
Corresponding Certification: Oracle MySQL
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Oracle 1Z1-921 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Oracle MySQL Enterprise Product Suite | 10% | - 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 2: Backup and Recovery | 10% | - Backup encryption and compression - Install and configure backup - Data import/export with MySQL Workbench - MySQL Enterprise Backup overview |
| Topic 3: Database Design | 15% | - Indexes, constraints and joins - Create and manage databases and tables - Table partitioning - Basic SQL queries - MySQL data types - MySQL Document Store |
| Topic 4: MySQL Database Service and HeatWave | 10% | - Monitoring and management - HeatWave setup and usage - Service overview and provisioning - High availability configuration |
| Topic 5: MySQL Enterprise Monitor | 10% | - Query Analyzer usage - Features and benefits - Custom Advisors configuration - Architecture: Service Manager and Agents |
| Topic 6: MySQL Security | 20% | - Authorization and privilege management - Password policies and authentication - MySQL Enterprise Firewall - Transparent Data Encryption (TDE) - MySQL Enterprise Audit - Data Masking and De-identification |
| Topic 7: High Availability and Replication | 10% | - Replication concepts and setup - High availability solutions overview - GTID-based replication - InnoDB Cluster deployment |
| Topic 8: Installation and Architecture | 15% | - MySQL infrastructure architecture overview - Install MySQL Enterprise Server - Configure MySQL Enterprise Server settings |
Oracle MySQL 2021 Implementation Essentials Sample Questions:
Which is true about inserting an additional line in a single document stored in MySQL document store?
- A. Any new lines can only be inserted at the end of the document.
- B. You specify the new element,s position in the JSON_ARRAY_INSERT statement.
- C. The path specified must be an array position past the end of an array using the JSON_POSITION statement.
- D. You cannot insert a single line, you have to replace the entire document with a new document.
Correct Answer: B 🗳️
How does MySQL HeatWave improve query performance?
Response:
- A. By offloading analytics queries to an in-memory, highly parallel processing engine.
- B. By replicating data across multiple servers.
- C. By automatically creating indexes on frequently used columns.
- D. By caching the entire database in memory.
Correct Answer: A 🗳️
You establish MySQL Enterprise Server on Oracle Cloud Infrastructure connection via Secure Shell (SSH).
When accessing a new MySQL Enterprise Edition Oracle Cloud Infrastructure (OCI) instance, you want to use MySQL Enterprise Workbench for SQL and remote management.
What are two ways to successfully configure Workbench based on the MySQL access credentials?
- A. Configure TCP/IP over SSH and based on the created private key, opc-User, and MySQL access credentials, you can access the MySQL OCI instance.
- B. Open the MySQL OCI instance access port 3306. For the MySQL connection, you use this port, and, in addition, you configure the remote management based on SSH based on the provided key.
- C. Convert the private key to ppk format first. Based on TCP/IP over SSH and based on the created private key, opc-user, and MySQL access credentials, you can access the MySQL CS instance.
- D. Configure the MySQL Router first and based on those settings, you access your MySQL CS instance.
Correct Answer: B 🗳️
When should you perform a backup in a MySQL database?
Response:
- A. After critical data updates or before making significant changes to the database.
- B. Only when the database size exceeds a certain limit.
- C. Only during scheduled maintenance windows.
- D. After every successful query execution.
Correct Answer: A 🗳️
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: B 🗳️
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