Before a message-driven bean (MDB) can be tested, the J2EE application server has been installed on a test machine and a connection factory and destination have been configured for the JMS provider. What other configuration task MUST be completed before the MDB can be tested on the test server? | JAVA JSP

A. The native library directory in the classpath must be specified
B. A message listener port must be defined
C. The message listener service must be enabled
D. A message passivation directory must be specified

Ans: B