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Oracle MySQL 2021 Implementation Essentials Sample Questions:

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

A) On Windows systems, MySQL Enterprise Firewall is controlled and managed by using the Windows Internet Connection Firewall control panel.
B) MySQL Enterprise Firewall shows only notifications blocked connections, which originated outside of your network's primary domain.
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) 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.
E) MySQL Enterprise Firewall is available only in MySQL Enterprise versions 5.7.10.and later.
F) System tables named firewall_users and firewall_whitelist in the mysql database provide persistent storage of firewall data.

2. By using the asynchronous MySQL Replication architecture, data can be replicated to slaves. Identify three use cases of MySQL Replication.

A) It allows backup to be done on the slave without impacting the master.
B) It provides multi-master access where the application can write and read data across the database servers.
C) MySQL Replication Connector/J (ReplicationDriver) is provided to allow read capability on slave and write capability on master.
D) MySQL Enterprise Backup will back up from Slave automatically.
E) You can create a slave server for reporting applications, which get only read access to the slave servers. It off-loads the master server. Additional servers allow different database server configuration.

3. What three are ways to export and import data in MySQL Workbench?

A) SQL Data Export and Import Wizard
B) Data Modeling Import Export Wizard
C) Backup Data Export and Import Wizard
D) Table Data Export and Import Wizard
E) Binary Data Export and Import Wizard
F) Result Data Export and Import

4. What SQL keyword must be specified when creating a foreign key constraint?

A) unique PRIMARY key values for both child and parent tables
B) the SET_FOREGIN variable in the my .cnf file
C) a REFERENCES in the child table to the parent table
D) a TRIGGER on the child table for cascading delete statements
E) an index on the foreign key

5. MySQL is installed on a Linux server with the configuration:
Which two methods can change the default options to use the authentication plug-in that implements SHA-256 hashing for user account passwords?

A) Add default_authentication_plugin=sha256_password under [mysqld] in the configuration file.
B) Create user by using CREATE USER 'newuser' @'localhost' SET PASSWORD AS 'Sh@256Pa33';
C) Create user by using CREATE USER 'newuser'@'localhost' IDENTIFIED WITH 'Sh@256Pa33';
D) Add --default_authentication_plugin=sha256_password on the command line when you invoke the server.

Solutions: