How do you configure a database connection in Mule 4?

• A. Use the Database Connector with a Global Element for the connection pool, providing JDBC URL, driver, username, and password.
• B. Database connections are automatically discovered with no configuration.
• C. You should connect directly using HTTP endpoints.
• D. Use a JMS connector to connect to the database.

Answer: (B)

In Mule 4, you configure a database connection using the Database Connector by defining a reusable connection configuration (a Global Element) that holds the JDBC URL, driver, username, and password (or a DataSource). This global configuration is then referenced by all database operations in your flows. The benefit is a managed connection pool that can be reused across messages, which improves performance and keeps credentials centralized in one place. Options that involve HTTP endpoints or JMS aren’t how you establish a DB connection, and there isn’t automatic discovery of database connections—the connection details must be provided through the configured Global Element for the Database Connector.