What are the types of messaging? (JMS)

Question :What are the types of messaging? (JMS)
Answer :There are two kinds of Messaging.
Synchronous Messaging:
Synchronous messaging involves a client that waits for the server to
respond to a message.
Asynchronous Messaging:
Asynchronous messaging involves a client that does not wait for a message
from the server. An event is used to trigger a message from a server.