Problem 3
What is the purpose of a messaging system?
Problem 4
Compare and contrast the point-to-point messaging model and the publish/subscribe messaging model. When would it be appropriate to use one over the other?
Problem 5
Using the point-to-point messaging model, create an application that allows a seller to receive bids on an item. The offering message should include the bidder's email address and bid price. (Hint: The seller should be the receiver of the offering messages, and the bidders should be the senders of the offering messages.)
Problem 7
Create an application using the publish/subscribe messaging model that accepts orders from a client. The order should be published as a message to a Domestic_ordexs topic if the client"s shipping address is domestic or an International_oxalers topic if the client's shipping address is international.
