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Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. Which three components can MySQL InnoDB Cluster use to Achieve database high availability?

A) MySQL Online Hot Backup to keep data consistent and always ready to be used.
B) MySQL Router to ensure client requests are load balanced and routed to the correct servers.
C) MySQL Shell to create and administer InnoDB Clusters using the built-in AdminAPI.
D) MySQL Servers with Group Replication to replicate data to all members of the cluster.
E) MySQL X Plugin to enable MySQL to use the X Protocol to speed up and monitor data replication.

2. You want to change the default behavior of MySQL Enterprise Monitor (MEM). New instances detected by a MEM agent should automatically monitor discovered instances.
How can you change the Advisor Setting?

A) Go to the configuration section (Advisors) and edit the default settings of the MySQL Process Discovery according to the existing users of your new MySQL instances.
B) Go to the configuration section (Users) and create a new user according to the existing users of your new MySQL instances.
C) Go to the configuration section (MEM) and configure the default login credentials.
D) Go to the configuration section (Advisors) and create a new advisor rule for new MySQL instances based on the MySQL Advisor Wizard.

3. 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) audit_log_permanent=ON
B) audit-log=FORCE_PLUS_PERMANENT
C) plugin-audit=ON, ALWAYS
D) LOAD PLUGIN=AUDIT_LOG
E) plugin-load=audit_log.so

4. Which two statements are true about MySQL Enterprise Firewall?

A) MySQL Enterprise Firewall shows only notifications blocked connections, which originated outside of your network's primary domain.
B) System tables named firewall_users and firewall_whitelist in the mysql database provide persistent storage of firewall data.
C) Server-side plug-ins named MYSQL_FIREWALL_USERS and MYSQL_FIREWALL-WHITELIST implement INFORMATION_SCHEMA tables that provide views into the firewall data cache.
D) On Windows systems, MySQL Enterprise Firewall is controlled and managed by using the Windows Internet Connection Firewall control panel.
E) MySQL Enterprise Firewall is available only in MySQL Enterprise versions 5.7.10.and later.
F) The firewall functionality is dependent upon SHA-256 and ANSI-specific functions built in to the mysql.firewall table. These functions cannot be deleted, even by the root user.

5. You have a MySQL Server instance (running with Port# 3306) monitored by the Service Manager in MySQL Enterprise Monitor. You cloned the MySQL Database instance and configured it to be a replicated MySQL instance as Slave using Port# 3316 on the same machine as the Master Server. The replication configuration is working correctly. The Master and Slave Servers are running.
You are trying to add the newly created MySQL Slave instance to the Monitor. The Service Manager in MySQL Enterprise Monitor notifies you that the new instance is successfully added; however, it is not added correctly at the newly added configuration points to the old Master monitored items. The Monitor shows only one monitored MySQL instance for Master and Slave.
Which two are possible reasons for this problem?

A) All the MySQL instances (Master and Slave) have the same server_uuid in <datadir>/auto.cnf.
B) The mysql.inventory table on SLAVE is cloned with the same content as MASTER, which has the same server UUID.
C) The MASTER and SLAVE are grouped as one instance for monitoring.
D) The mysql.instance table on SLAVE is cloned with the same content as MASTER, which has the same server UUID.
E) The SLAVE and MASTER instances are started with the same configured value for the option - - monitor_server_uuid.

Solutions: