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Introduction to Oracle 1Z0-908: MySQL 8.0 Database Administrator Exam

Oracle 1Z0-908: MySQL 8.0 Database Administrator Administration Exam assesses the abilities of the Database Administrators and System Administrators who have at least 1 year of experience in RAC and Grid Infrastructure. The candidates should have the ability to install, manage, tracking, tuning, and restoring RAC databases, cluster, and Oracle Automatic Storage Management (ASM). They should have a good understanding of the architectures of the ASM, Clusterware, and Oracle RAC databases. They should also know how to install, setup, backup, and recovery monitoring and tuning of these components.

Oracle Real Application Clusters (RAC) in database computing is a choice for Oracle Database software developed by Oracle Corporation, it provides clustering software and high availability in Oracle database environments. With the Enterprise Version, Oracle Corporation includes RAC, provided the nodes are clustered using Oracle Clusterware. Oracle RAC allows several machines when accessing a single database, to run Oracle RDBMS software simultaneously, offering to cluster.

The Oracle Grid Infrastructure for an independent server is the Oracle software that offers system support for a database including the file system, volume management, and automation of the restart process. If you want to utilize the Oracle restart or Oracle Automatic Storage Management (ASM) services, you have to install Oracle grid infrastructure before installing Oracle Database.

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Topics of Oracle 1Z0-908: MySQL 8.0 Database Exam

The Oracle 1Z0-908 exam tests the abilities and knowledge of the candidates by checking the following objectives:

Architecture

• Understand and use the Data Dictionary
• Understand how InnoDB stores data and logs
• Configure buffers and caches
• Understand how MySQL stores data
• Configure client connections to the server

Server Installation and Configuration

• Upgrade MySQL
• Install and use the MySQL server and client programs
• Configure MySQL variables
• Launch multiple MySQL servers on the same host
• Configure MySQL by using options and option files
• Start and stop MySQL
• Identify the files and folders created during the installation

Security

• Encrypt MySQL data
• Provide the password and login security
• Secure the MySQL host environment
• Secure MySQL server connections
• Use authentication plug-ins
• Control user and role permissions
• Prevent SQL injection attacks
• Create user accounts and roles
• Configure MySQL Enterprise Firewall
• Recognize common security risks

Monitoring and Maintenance

• Monitor database growth and explain capacity planning
• Configure MySQL Enterprise Audit
• Configure and view MySQL log files
• Use MySQL Enterprise Monitor to view activity in MySQL
• Troubleshoot problems with locked resources
• Monitor MySQL processes and status

Query Optimization

• Create indexes to improve server performance
• Monitor and understand index statistics
• Analyze queries with MySQL Enterprise Monitor
• Examine how MySQL optimizes queries

Backups and Recovery

• Distinguish between the different types of backup
• Implement a backup strategy
• Backup and restore data with MySQL Enterprise Backup
• Explain when and how to use raw file backups
• Use mysqldump and mysqlpump to perform logical backups
• Back up the binary log

High Availability Techniques

• Explain the role of replication threads
• Configure replication
• Monitor and troubleshoot replication
• Explain how replication provides high availability and scalability
• Perform an InnoDB cluster recovery
• Explain the role of the binary log in replication
• Describe MySQL InnoDB Cluster and Group Replication
• Configure a MySQL InnoDB cluster
• Configure multisource replication

Reference: https://education.oracle.com/mysql-80-database-administrator/pexam_1Z0-908

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