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Oracle MySQL 2021 Implementation Essentials Sample Questions:

1. You execute this statement:
SELECT NULL=NULL;
What is the result?

A) 1
B) FALSE
C) 0
D) NULL
E) TRUE

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

3. Which MySQL command is used to grant specific privileges to a user on a database?
Response:

A) SET PRIVILEGES
B) GRANT
C) GIVE ACCESS
D) GRANT PERMISSIONS

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

A) MySQL Enterprise Backup will back up from Slave automatically.
B) 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.
C) It allows backup to be done on the slave without impacting the master.
D) MySQL Replication Connector/J (ReplicationDriver) is provided to allow read capability on slave and write capability on master.
E) It provides multi-master access where the application can write and read data across the database servers.

5. Which two methods help prevent MySQL security risks?

A) Use the secure installation script "mysql_alays_secure_installation".
B) Allow unauthorized clients to connect to the server.
C) Use a firewall to control access to MySQL ports.
D) Ensure that MySQL accounts have short and easy passwords.
E) Grant only permissions that a user requires.
F) Transmit plain (unencrypted) data over networks.

Solutions: